List of Famous people born in Canton of St. Gallen, Switzerland

Simon "Simi" Ammann is a Swiss ski jumper. He is one of the most successful athletes in the history of the sport, having won four individual Winter Olympic gold medals, in 2002 and 2010, and is the only ski jumper to have achieved the gold double–double at the Winter Olympics. His other achievements include winning the 2007 Ski Jumping World Championships, the 2010 Ski Flying World Championships, the 2010 Nordic Tournament, and the 2010 Ski Jumping World Cup overall title.

Jolanda Neff is a Swiss cyclist, who currently rides for Trek Factory Racing in cross-country and cyclo-cross events.

Karin Keller-Sutter is a Swiss politician serving as a Member of the Swiss Federal Council since 2019. A member of FDP.The Liberals, she is the head of the Federal Department of Justice and Police.

Stefan Frei is a footballer who plays as a goalkeeper. He has played his entire professional career in Major League Soccer. He currently plays for Seattle Sounders FC.

Marco Büchel is a retired alpine ski racer from Liechtenstein. He participated in a record-tying six Winter Olympics, starting in 1992 and ending in 2010.

Kevin Fiala is a Swiss professional ice hockey winger currently playing with the Minnesota Wild of the National Hockey League (NHL). Born in Switzerland to Czech parents, Fiala first played hockey there, before moving to Sweden in 2012 to further his career. He spent one season with the Malmö Redhawks junior team, then joined HV71, splitting a season between their junior team and their senior team in the Swedish Hockey League (SHL), being selected by the Nashville Predators 11th overall in the 2014 NHL Entry Draft. Fiala started the following season with HV71 before moving to North America halfway through, splitting two seasons between the Predators and their American Hockey League (AHL) affiliate, the Milwaukee Admirals.

Emil Jannings was a German actor, popular in the 1920s in Hollywood. He was the first recipient of the Academy Award for Best Actor for his roles in The Last Command and The Way of All Flesh. As of 2021, Jannings is the only German ever to have won the category.

Marwin Hitz is a Swiss footballer who plays as a goalkeeper for Borussia Dortmund in the Bundesliga. Hitz scored a stoppage-time equalizer in a league match against Bayer 04 Leverkusen on 21 February 2015 (2–2).

Heinrich Greinacher was a Swiss physicist. He is regarded as an original experimenter and is the developer of the magnetron and the Greinacher multiplier.

Josef Meinrad Ackermann is a Swiss banker, former Chairman of the Bank of Cyprus, and former chief executive officer of Deutsche Bank. He has also been a member of the influential Washington-based financial advisory body, the Group of Thirty.