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The legal status of polygamy varies widely around the world. Polygyny is legal in 58 out of nearly 200 sovereign states, the vast majority of them being Muslim-majority countries. Some countries that permit polygamy have restrictions, such as requiring the first wife to give her consent.

In countries that ban polygamy, the offence is commonly called bigamy, though the penalty varies between jurisdictions. In some countries where polygamy is illegal, the prohibition is not enforced.

• Algeria^[1]
• Cameroon^[2]
• Chad^[3]
• Central African Republic^[4]
• Comoros
• Republic of the Congo^[5]
• Djibouti^[6]
• Egypt^[7]
• Eswatini^[8]
• Gabon:^[9] Both men and women can join in polygamous marriage with the other gender under Gabonese law. In practice, the right to multiple spouses is reserved for men only.^[10]
• The Gambia^[11]
• Guinea^[12]
• Guinea-Bissau
• Libya^[13][14][15]
• Kenya: Polygamy legal under legislation passed in 2014.^[16]
• Mali^[17]
• Mauritania^[18]
• Morocco^[19]
• Nigeria (only in some states)^[20]
• São Tomé and Príncipe^[21]
• Senegal^[22]
• Somalia^[23]
• Somaliland^[24]
• South Sudan^[25]
• South Africa is recognized for customary marriages. The Supreme Court also ruled that Muslim marriages performed under Sharia law are valid.^[26][27][28]
• Sudan^[29]
• Togo^[30]
• Tanzania^[31]
• Uganda^[32]
• Sahrawi Arab Democratic Republic
• Zambia^[33]

• Afghanistan^[34]
• Bahrain^[35]
• Bangladesh^[36]
• Bhutan^[37][38]
• Brunei^[39]
• Indonesia (except for in the provinces of Maluku, North Maluku, Papua, and West Papua) ^{[citation needed][40][failed verification]}
• Iran^[41]
• Iraq (except for in Iraqi Kurdistan)^[42]
• Jordan^[43]
• Kuwait^[44]
• Maldives^[45]
• Oman^[46]
• Qatar^[47]
• Palestine^[48]
• Saudi Arabia^[49]
• Syria (except in Syrian Kurdistan)^[50]
• United Arab Emirates^[51]
• Yemen^[52]

• Solomon Islands^[53]

Note: These countries are included separately because they have specific legislation aimed only at Muslims.

• Malaysia^[54]
• Philippines, only for "exceptional cases" even among Muslims where a man could provide for his wives with equal companionship.^[55][56][57]
• Sri Lanka^{[citation needed]}
• Lebanon^[58]
• Pakistan^[59]
• Singapore
• India

India (for Muslims and in Goa)

Africa

• Botswana^[60]
• Lesotho^[61]
• Liberia^[62]
• Malawi^[63]
• Namibia^[64]
• Niger^[65]
• Nigeria (only in some states):^[66] Recognized in all northern Sharia states
• Sierra Leone^[67]
• Zimbabwe^[68]

Polygamy is more widespread in Africa than in any other continent, being most common in a region known as the "polygamy belt" in West Africa and Central Africa, with the countries estimated to have the highest polygamy prevalence in the world being Burkina Faso, Mali, Gambia, Niger and Nigeria.^[69] In the region of sub-Saharan Africa, polygyny is common and deeply rooted in the culture, with 11% of the population of sub-Saharan Africa living in such marriages (25% of the Muslim population and 3% of the Christian population, as of 2019).^[70] Polygamous marriages occur, regardless of legality, as the practice is deeply rooted in culture and often supported by Islam in Africa.

• Angola^[71]
• Benin^[72]
• Burkina Faso^[73]
• Burundi^[74]
• Cabo Verde^[75]
• Democratic Republic of the Congo^[76]
• Côte d'Ivoire: Polygamy may be punishable by six months to three years imprisonment, or a fine of CFA 50,000 to CFA 500,000 (US$80 to US$800).^[77]
• Eritrea: Illegal since 1977, after 2015 polygamy is punishable with "a definite term of imprisonment of not less than 6 months and not more than 12 months, or a fine of 20,001 – 50,000 Nakfas."^[78]
• Equatorial Guinea^[79][80][81]
• Ghana^[82][83]
• Ethiopia^[84][85]
• Madagascar^[86]
• Mauritius
• Mayotte (French territory) (not criminalized): Considered to be de facto illegal since a referendum sponsored by France in March 2009, forcing the island to comply with the French laws.^[87][88] However, pre-existing Muslim marriages are currently still valid.
• Mozambique^[89]
• Rwanda^[90]
• Seychelles
• Tunisia: Polygamy has been banned and criminalized since 1956^[91] according to Article 18 of the Code of Personal Status and punishable by one year's imprisonment.

• Antigua and Barbuda
• Argentina
• Bahamas
• Barbados
• Belize
• Bolivia
• Brazil: Bigamy is illegal. The marriage of a single individual to more than one other person is prohibited by law as bigamy, which is punishable by two to six years of imprisonment,^[92] and is valid for every Brazilian citizen, including naturalized ones. De facto polygamy is not outlawed.
• Canada: All forms of polygamy, and some informal multiple sexual relationships, are illegal under section 293 of the Criminal Code.^[93] Bigamy is banned by section 290.^[94] However, as of January 2009, no person has been successfully prosecuted, i.e. convicted, in over sixty years.^[95] In 2009, two acquittals on polygamy charges, arising out of the town of Bountiful, British Columbia, prompted the government of British Columbia to pose a reference question to the Supreme Court of British Columbia (i.e., the superior trial court). The reference questions asked if the criminalisation of polygamy was consistent with the Canadian Charter of Rights and Freedoms; and, if so, under what circumstances could people be legally punished for polygamy.^[96] In November 2011 the court released its 335-page long decision, which was that the criminal offence of polygamy is indeed constitutional, but that it should not be used to prosecute minors for having taken part in a polygamous marriage.^[97] Chief Justice Robert J. Bauman conceded that there is a conflict between this law and some civil rights principles, but stated that there are other and "more important" issues which in this case take precedence. He wrote (as quoted by CBC News^[97]): "I have concluded that this case is essentially about harm. More specifically, Parliament's reasoned apprehension of harm arising out of the practice of polygamy. This includes harm to women, to children, to society and the institution of monogamous marriage." Bauman argued that there are cases where the "wives" (who may be rather young; sometimes as young as 12 years) are abducted and abused, but because they believe in faith-promoting polygamy, they are not willing to bring complaints to the authorities. He reasoned that these offences sometimes may be stopped by applying anti-polygamy legislation. The decision was welcomed by the Attorney General of British Columbia, and by a representative for the group Stop Polygamy in Canada. Likewise, according to CBC News,^[97] some polyamorous groups in Canada expressed their relief since Bauman had stated that the law shouldn't apply to them unless they decide to formalize their unions. Women's rights were central to the decision.^[97]
• Chile
• Colombia
• Costa Rica
• Cuba
• Dominica
• Dominican Republic
• Ecuador
• El Salvador
• Grenada
• Guatemala
• Guyana
• Haiti
• Honduras
• Jamaica
• Mexico
• Nicaragua
• Panama
• Paraguay
• Peru
• St. Kitts and Nevis
• St. Lucia
• St. Vincent and The Grenadines
• Suriname
• Trinidad and Tobago

• United States: Polygamy is illegal in all 50 states,^[98] De facto polygamy is illegal under federal law, the Edmunds Act. Utah, in February 2020, reduced polygamy to the status of a traffic ticket;^[99][100] nevertheless recognizing that polygamous unions are illegal under the Constitution of Utah.^[101] Polygamy is illegal federally according to the Edmunds Act.
  
  Further information: Legality of polygamy in the United States
• Uruguay
• Venezuela

As in Africa, polygamy continues to be practiced in parts of Asia, regardless of laws.

• Armenia
• Azerbaijan
• Georgia
• Nepal
• China: Polygamy is illegal under the Civil code passed in 2020, which replaced a similar 1950 and 1980 prohibition.^[102]
• Hong Kong: Polygamy ended with the passing of the Marriage Act of 1971^[103] when the country was a crown colony under the former flag . Previous unions entered into under customary law are recognised in some situations.
• Israel: Polygamy has been banned for all confessional communities since at least 1959.^[104] Polygamy was criminalized in 1977, but the law is not consistently enforced and polygamy is still practiced by Negev Bedouins.^[105]
• Japan
• Kazakhstan: Polygamous marriages are not recognized, but the practice is decriminalized, with Kazakhstan being the only Central Asian country to have decriminalized the practice (in 1998, when the new criminal code no longer provided for such an offense).^[106]
• Kyrgyzstan
• Mongolia
• Myanmar^[107][108]
• North Korea
• South Korea
• Taiwan (Polygamy is illegal by the 1930 ROC civil law.^[clarify])^[109]
• Tajikistan
• Turkey (Polygamy was criminalized in 1926 with the adoption of the Turkish Civil Code, part of Atatürk's secularist reforms. Penalties for polygamy are imprisonment of up to 5 years.)^[110] Turkey has long been known for its promotion of secularism,^{[111][112][113]} and has introduced measures establishing stricter bars against polygamy; these were passed by the ruling moderate Islamist AK Party as well. In March 2009, AK Parti effectively banned polygamists from entering or living in the country.^[114]
• Turkmenistan
• Uzbekistan: Religious authorities who perform a marriage ceremony for couples without a civil marriage license face fines of up to 9,900,000 so'm. Additionally, propagandizing or encouraging cohabitation with two or more wives is punishble by a fine of the same amount, or administrative detention for up to 15 days.^[115]
• Vietnam
• Cambodia^[116]
• Laos
• Russia: Polygamous marriages are not recognized in the Russian Federation. The Family Code of Russia states that a marriage can only be contracted between a man and a woman, neither of whom is married to someone else.^[117] Furthermore, Russia does not recognize polygamous marriages that had been contracted in other countries.^[118] However, neither bigamy nor de facto polygamy are criminalized.^[119]
• Thailand^[120]
• Timor-Leste^[121]

• Albania
• Armenia
• Andorra
• Azerbaijan
• Belarus
• Bosnia and Herzegovina
• European Union: Polygamy is illegal in all 27 states. In Bulgaria, polygamy is illegal and punishable with up to three years imprisonment.^[122] In Finland, the official prosecutor is obliged to take all cases to a court where more than two persons are married to each other and such relationships cease to exist after the court has decided it.^[123] Polygamic marriages performed abroad may be recognized only on narrow occasions, for instance in child custody matters.^[124] In France, polygamy is illegal under Article 433-20 of the Penal Code and punishable by one year's imprisonment and a fine of €45,000.^[125] In Germany, polygamy is illegal, legally punishable with fine or prison time up to three years.^[126] Polygamous marriages contracted abroad are legal, however, the German authorities announced plans to close this legal loophole by making it a barrier to naturalization.^[127] In Ireland,^[128] the Catholic Church in Ireland allowed someone with a church annulment but no civil annulment to remarry in church; such a marriage was legally null and bigamous but no prosecutions were brought.^[129][130] The practice ended after the 1996 legalisation of divorce.^[129] In 2017, the Supreme Court ruled that if someone had two legal marriages abroad, only the first was legal in Ireland, though 'that did not necessarily mean marriage "can never have legal consequences "'.^[131] In the Netherlands, a marriage between more than two individuals is prohibited; however, a samenlevingscontract may include more than two partners. It legally accepts immigrants who are in such a union from a country where it is legal; e.g. if a man with two wives immigrates to The Netherlands, all three will be legally recognized.^[132] In Romania, bigamy, defined as marriage conducted by a person who is already married, is punishable by up to 2 years in prison or fine. Knowingly marrying a married person is punishable by up to 1 year in prison or by fine.^[133] In Sweden, a person who is already married is not permitted to enter into another marriage. In the past, Sweden generally recognized polygamous marriages performed abroad.^{[134][135][136]} However, the Swedish government decided to task an inquiry chair with reviewing how to prevent recognition of foreign polygamous marriages in Sweden; Deputy Minister for Justice, Heléne Fritzon stating that "Polygamous marriages should not be recognised in Sweden and we need to review the existing legal loophole that makes it possible. Polygamous marriages undermine gender equality and, according to the UN, it can have serious emotional and financial consequences".^[137] Since 2021, Sweden no longer recognizes foreign polygamous marriages, save in exceptional circumstances.^[138]
• Georgia
• Iceland
• Kosovo
• Liechtenstein
• Moldova
• Monaco
• Montenegro
• North Macedonia
• Norway
• Russia: Polygamous marriages are not recognized in Russia. The Family Code of Russia states that a marriage can only be contracted between a man and a woman, neither of whom is married to someone else.^[117] Furthermore, Russia does not recognize polygamous marriages that had been contracted in other countries.^[118] However, neither bigamy nor de facto polygamy are criminalized.^[119]
• San Marino
• Serbia
• Switzerland: Polygamy is illegal by law. But polygamous marriage conducted in another country may be accepted or rejected on a case-by-case basis.^[139]
• Turkey
• Ukraine
• United Kingdom: Foreign polygamous marriages grant some welfare benefits only, but this is being phased out with the introduction of Universal Credit.^[140] Polygamy is treated as bigamy if a second marriage (or civil partnership) is contracted in the United Kingdom. No legal recognition is extended to spouses of subsequent marriages after the first marriage is recognised even when subsequent marriages are contracted abroad.
• Vatican City (Holy See)

• Australia: Polygamous marriages cannot be performed in Australia, but polygamous relationships are still common within some indigenous Australian communities.^[141][142] Polygamous marriages entered into abroad are recognised for limited purposes^[which?] only.^[143]
• Fiji
• Kiribati
• Marshall Islands
• Micronesia
• Nauru
• New Zealand: Polygamous marriages cannot be performed in New Zealand, but are permissible if they are legally performed in a country that permits polygamy.
• Palau
• Papua New Guinea
• Samoa
• Tonga
• Tuvalu
• Vanuatu

In most countries, a person who marries a person while still being lawfully married to another commits bigamy, a criminal offence, though penalties vary between jurisdictions. Besides, the second and subsequent marriages are considered legally null and void.

The United Kingdom, Australia, and New Zealand permit some benefits for spouses of polygamous marriages performed abroad. In the past, Sweden used to recognize polygamous marriages performed abroad; but since 2021, Sweden no longer recognizes such marriages, save in exceptional circumstances.^[138] In Switzerland polygamous marriages conducted abroad may be accepted or rejected on a case-by-case basis;^[144] see § Europe.

In Canada, both bigamy (article 290 of the Criminal code of Canada)^[145]) and de facto polygamy (article 293 of the Criminal Code) ^[146] are illegal, but there are provisions in the property law of at least the Canadian province of Saskatchewan that consider the possibility of de facto multiple marriage-like situations (e.g. if an already married person enters into a second common-law relationship situation without first obtaining a legal divorce from their existing spouse).^{[147][better source needed]}

The vast majority of sovereign states with a Muslim-majority population recognize polygamous marriages: these states span from the West Africa to Southeast Asia, with the exceptions of Turkey, Tunisia, Albania, Kosovo and Central Asian countries.^{[148][149][150][151]}

Predominantly Christian nations usually do not allow polygamy, with a handful of exceptions such as the Republic of the Congo, Uganda, and Zambia.

Almost a dozen countries that do not permit polygamous civil marriages recognize polygamous marriages under customary law. All the northern states in Nigeria governed by Islamic Sharia law recognize polygamous marriages. The autonomous regions of Somaliland and Puntland in northern Somalia also recognize polygamy, as does the country's Transitional Federal Government itself, since the country is governed by Sharia law. The recently independent country of Southern Sudan also recognizes polygamy.

Polyandry is de facto the norm in rural areas of Tibet, although it is illegal under Chinese family law. Polygamy continues in Bhutan^[38] in various forms as it has since ancient times. It is also found in parts of Nepal,^[152] despite its formal illegality in the country.^[153]

Debates of legalizing polygamous marriages continue in Central Asian countries.^{[citation needed]}

In 2000, the United Nations Human Rights Committee reported that polygamy violates the International Covenant on Civil and Political Rights (ICCPR), citing concerns that the lack of "equality of treatment with regard to the right to marry" meant that polygamy, restricted to polygyny in practice, violates the dignity of women and should be outlawed.^[154] Specifically, the reports to UN Committees have noted violations of the ICCPR due to these inequalities^[155] and reports to the General Assembly of the UN have recommended it be outlawed.^[156][157]

Some countries where polygamy is legal are not signatories of ICCPR, including Saudi Arabia, United Arab Emirates, Qatar, Oman, Malaysia, Brunei and South Sudan; so that ICCPR does not apply to these countries.^[158] It has been argued by the Department of Justice of Canada that polygyny is a violation of international human rights law.^[159]

The tables below cover recent pieces of legislation that have been either debated, proposed or voted on; all of which concerns a form of polygamous union.

Country	Date	Polygamous union	Upper House		Lower House		Head of State	Final outcome
			Yes	No	Yes	No
Iraq	1963	Polygamous civil marriage (revoke of prohibitions)[160]	Passed		Passed		Signed	Yes
Philippines	February 1977	Polygamous civil marriage (Muslims only)[161]	-		-		Signed	Yes
United Kingdom	1987 or earlier	Foreign marriages may receive benefits payments, being phased out[140]
Malawi	1994	Customary law (recognizes polygamous unions)[162]	Passed		Passed		Signed	Yes
Libya	1998	Polygamous civil marriage [163]	Passed		Passed		Signed	Yes
South Africa	1998	Customary marriage (civil recognition)[164]	Passed		Passed		Signed	Yes
Namibia	2003	Customary law (recognizes polygamous unions)[165]	Passed		Passed		Signed	Yes
Namibia	2004	Pension benefits to wives of a deceased president[166]	-		Failed		-	No
Uganda	2005	Polygamous civil marriage (easing of laws; plus restrictions)	Passed		Passed		Signed	Yes
Kyrgyzstan	2007	Polygamous civil marriage[167]	Failed		-	-	-	No
Kazakhstan	2007	Polygamous civil marriage[167]	Failed		-	-	-	No
Uzbekistan	2007	Polygamous civil marriage	Failed		-	-	-	No
Tajikistan	2007	Polygamous civil marriage	Failed		-	-	-	No
Turkmenistan	2007	Polygamous civil marriage	Failed		-	-	-	No
Kazakhstan	June 2008	Polygamous civil marriage[168]	Failed		-	-	-	No
Iran	September 2008	Polygamous civil marriage (easing of laws)[169]	Failed		-	-	-	No
Namibia	July 2009	Polygamous civil marriage[170]	Proposed		-	-	-	-
Russia	2009	Polygamous civil marriage	Proposed		-	-	-	-
Kenya	March 2014	Polygamous civil marriage	Passed[16]		-	-	-	Yes