The Finns Party (Finnish: Perussuomalaiset [ˈperusˌsuo̯mɑlɑi̯set], PS; Swedish: Sannfinländarna, Sannf), formerly known as the True Finns, is a right-wing populist political party in Finland. It was founded in 1995 following the dissolution of the Finnish Rural Party.

The party achieved its electoral breakthrough in the 2011 Finnish parliamentary election, when it won 19.1% of votes, becoming the third largest party in the Parliament of Finland.

In the 2015 election the party got 17.7% of the votes, making it the parliament's second-largest political party. The party was in opposition for the first 20 years of its existence. In 2015, it joined the coalition government formed by Prime Minister Juha Sipilä.

Following a 2017 split, over half of the party's MPs left the parliamentary group and were subsequently expelled from their membership in the party. This defector group, Blue Reform, continued to support the government coalition, while the Finns Party went into opposition. The party, having been reduced to 17 seats after the split, increased its representation to 39 seats in the 2019 Finnish parliamentary election, while Blue Reform failed to win any seats.

During the 2023 Finnish parliamentary election, the Finns Party finished in second place with 46 seats, recording their strongest result since its founding. They then, out of Petteri Orpo's request, proceeded to form a coalition government with the winning National Coalition Party, the Christian Democrats and Swedish People's Party of Finland. The party currently holds seven of nineteen ministerial portfolios in the Orpo Cabinet.

The predecessor of the Finns Party was the Finnish Rural Party (SMP), founded by Agrarian League dissident Veikko Vennamo in 1959. Vennamo ran into serious disagreement with Arvo Korsimo, the Agrarian League's party secretary, and was excluded from the parliamentary group. As a result, Vennamo immediately started building his own organization and founded the Finnish Rural Party. Vennamo was a populist and became a critic of President Urho Kekkonen and of political corruption within the "old parties", particularly the Centre Party (the renamed Agrarian League). The Rural Party achieved two major victories in the elections of 1970 and 1983, winning 18 and 17 seats, respectively.

In the 1970s, Vennamo's personalized leadership style alienated some in the party, which led to a split in the parliamentary group in 1972. After the Rural Party's new rise in 1983 under Vennamo's son Pekka, the party became a partner in two coalition governments. However, the party's support declined steadily in the late-1980s and early-1990s. In 1995, the party won only one seat in the Finnish parliament and soon filed for bankruptcy.

In the summer of 1995, following the collapse of the Finnish Rural Party, the decision to found the Finns Party was made by Timo Soini, Raimo Vistbacka, Urpo Leppänen and Kari Bärlund. Soini had been the Rural Party's last party secretary and Vistbacka its last chair and MP. The party collected the five thousand signatures needed for registration and was added to the official party register on 13 October 1995. The first party congress was held in November. Vistbacka was elected party chair and Soini the party secretary.