List of Famous people born in Ostrobothnia

Kristin "Krista" Siegfrids is a Finnish singer and television presenter. She represented Finland in the Eurovision Song Contest 2013 with her entry "Marry Me". Siegfrids' debut album, named Ding Dong!, was released in May 2013. As a television presenter, she has hosted Uuden Musiikin Kilpailu since 2016.

Sonja Lumme is a singer in Finland who represented her country in the Eurovision Song Contest 1985 in which she sang Eläköön elämä. She got 58 points and came 9th place overall. Lumme made further attempts to represent Finland, participating in the 1988 Finnish final and in 1989, she came fifth with "Rakkauden Laulut". Her final attempt was in 1992 with the song "Rakkauden bulevardi" which came third.

Ami Aspelund is a Finnish singer. She is the younger sister of singer Monica Aspelund.

Anna-Maja Kristina Henriksson is a Swedish-speaking Finnish politician. She has served as Finland's Minister of Justice, in Jyrki Katainen's cabinet and Alexander Stubb's cabinet from 2011 to 2015, Antti Rinne's cabinet from June to December 2019 and currently in Sanna Marin's cabinet since December 2019. She has been a member of the Parliament of Finland since 2007, vice-chairperson of the Swedish People's Party of Finland 2010–2016 and chairperson of the Swedish Parliamentary Group 2015–2016.

Andrew "Andy" Alfons Engman was a Swedish/Finnish cartoon animator. Engman worked for Walt Disney Studios in Burbank, California, from the animating of Snow White and the Seven Dwarfs to the completion of The Jungle Book, about 1937 to 1971. He started out as an "In-Betweener" animator. He did some Donald Duck and Goofy cartoons as a character animator, and went on to being a special effects animator. Later he went into production in a middle management position. He also worked on the effect animations of Make Mine Music (1946) and the layout of Der Fuehrer's Face (1943).

Santeri Alkio was a Finnish politician, author and journalist. He is also considered to be the ideological father of Finnish Centre Party.

Karl Frithiof Sundman was a Finnish mathematician who used analytic methods to prove the existence of a convergent infinite series solution to the three-body problem in 1906 and 1909. He also published a paper on regularization methods in mechanics in 1912.

Kai Hahto is a Finnish musician and drummer.

Stefan Erik Wallin is a Swedish-speaking Finnish politician. He was Finland's Minister of Culture and Sport in Matti Vanhanen's cabinet 2007–2011, Minister of Defence in Jyrki Katainen's cabinet 2011–2012 and a Member of Parliament 2007–2019.