Финляндияда бір жынысты некелердің заңдастырылуы

none

Same sex marriage has been legal in Finland since 1 March 2017. A bill for the legalisation of same sex marriages was approved by the Finnish Parliament in a vote of 101–90 on 12 December 2014 and signed into law by President Sauli Niinistö on 20 February 2015. Further legislation to harmonise other laws with the legalisation of same sex marriage was passed in 2016. The law took effect on 1 March 2017. Finland was the twentieth country in the world, the twelfth in Europe as well as the last Nordic sovereign state to allow same sex couples to marry nationwide. From 2002 until 2017, Finland recognized registered partnerships for same sex couples, which provided the same rights and responsibilities as marriage with the exception of joint adoption rights and the right to a joint last name.

Legislation introducing registered partnerships (; registrerat partnerskap) for same sex couples was passed by the Parliament of Finland on 28 September 2001 with a vote of 99–84. The law went into effect on 1 March 2002. Registered partnerships, which were available only to same sex couples, provided the same rights and responsibilities as marriage for opposite sex couples, except for adoption rights and the ability to take a common family name, and they were registered and dissolved using a procedure similar to that for civil marriage. The legislation also granted immigration rights to a foreign partner. The Parliament revised the law in May 2009, allowing a person in a registered partnership to adopt the biological children of their partner. On 1 March 2017, the ability to enter into a registered partnership was closed off. No further partnerships are granted in Finland, and existing registered partners only retain their status if they do not marry.

Same sex marriage has been legal in Finland since 1 March 2017. Legislation to open marriage to same sex couples passed the Parliament of Finland on 12 December 2014 with support from the Social Democratic Party (SDP), the Green League, the Left Alliance, the Swedish People's Party and the National Coalition Party (NCP). The Finns Party, the Christian Democrats and the Centre Party opposed same sex marriage, though the latter has since rejected attempts to repeal the same sex marriage law. In Finnish public discourse, same sex marriage is commonly referred to as "equal marriage" or "gender neutral marriage".

A poll conducted by Christian newspaper Kotimaa in March 2010 showed that a narrow majority of Finnish MPs opposed same sex marriage. Of the 126 MPs who were asked if they would support a gender neutral marriage law, 46% were in favour and 54% were opposed. 63% of Social Democratic lawmakers supported same sex marriage as well as all MPs from the Greens and the Left Alliance. A majority of MPs from the Centre Party and the National Coalition Party opposed same sex marriage. However, a later survey in April 2010 by Helsingin Sanomat reported that there was cross party support for same sex marriage and joint adoption rights. The Secretary of the National Coalition Party, Taru Tujunen, said that an initiative on same sex marriage would be put forward at the next party conference. At their June 2010 party conference, the NCP delegates voted in favor of a gender neutral marriage law, though the vice chairman of the NCP parliamentary group, Ben Zyskowicz, said that a majority of NCP MPs were against it. Two weeks earlier, the Social Democrats passed a measure in favor of same sex marriage. The Left Alliance and the Green League also support it. Foreign Minister Alexander Stubb, who held a speech at the opening ceremony of Helsinki Pride week on 28 June 2010, said he supports a gender neutral marriage law with full adoption rights for same sex couples. On 2 July 2010, Justice Minister Tuija Brax announced that the Ministry of Justice would be preparing a reform to the Marriage Act (; Äktenskapslag) in the autumn of 2011. It was considered possible that same sex marriage would be legalized after the 2011 parliamentary elections, where it was speculated to turn into a major theme, though in an August 2010 survey by Yle only 20% of respondents said the issue should be a major theme.

4,215 registered partnerships were established in Finland between 2002 and 2017, with a high of 446 partnerships in 2002 and a low of 36 partnerships in 2017.

Same sex marriage remains a controversial matter in the Evangelical Lutheran Church of Finland, the largest Christian denomination in Finland. Many priests officiate at same sex marriages and offer their blessings to the couples. However, the matter is contentious within the church. In November 2020, a group of ministers opposed to same sex marriage called on the church synod to sanction priests who officiate at such marriages. Archbishop Tapio Luoma has called on dioceses not to sanction priests who perform marriages for same sex couples, saying that the issue "cannot be settled by sanctions" but that "any solution for the church must be based on the fact that there can be disagreement on the matter". A 2019 survey conducted by the University of Eastern Finland showed that 57% of priests in the Evangelical Lutheran Church would marry same sex couples if explicitly permitted by the church leadership to do so. In September 2020, the Supreme Administrative Court of Finland ruled that diocesan chapters may sanction priests who perform same sex marriages. The Diocese of Helsinki has taken a position not to issue warnings to priests who perform same sex marriages. while an August 2010 survey conducted by Yle put support at 54% with 35% opposing it. A March 2013 survey by Taloustutkimus found that 58% of Finns supported same sex marriage. In March 2014, a follow up Taloustutkimus survey put support at 65% with 27% opposing and 8% unsure. The 2015 Eurobarometer found that 66% of Finns thought same sex marriage should be allowed throughout Europe, while 28% were opposed. A Pew Research Center poll, conducted between April and August 2017 and published in May 2018, showed that 64% of Finns supported same sex marriage, 26% were opposed and 10% did not know or refused to answer. When divided by religion, 84% of religiously unaffiliated people, 62% of non practicing Christians and 30% of church attending Christians supported same sex marriage. Opposition was 12% among 18–34 year olds. The 2019 Eurobarometer found that 76% of Finns thought same sex marriage should be allowed throughout Europe, while 21% were opposed. The 2023 Eurobarometer showed that support had increased to 76%, while 18% were opposed. The survey also found that 82% of Finns thought that "there is nothing wrong in a sexual relationship between two persons of the same sex", while 14% disagreed.