Friedrich August Flückiger (1828 in Langenthal - 1894) a Swiss pharmacist, chemist and botanist
Carl Friedrich Geiser (1843 in Langenthal – 1934) mathematician, specializing in algebraic geometry
Karl Jaberg (1877 in Langenthal – 1958) a Swiss linguist and dialectologist
Friedrich Born (1903 in Langenthal – 1963), ICRC diplomat, credited with rescuing between 11,000 and 15,000 Jews in Budapest
Adrian Aeschbacher (1912 in Langenthal – 2002) a Swiss classical pianist
Heinz Holliger (born 1939 in Langenthal) oboist, composer and conductor
Johann Schneider-Ammann (born 1952) businessman and politician, member of the Swiss National Council, lives in Langenthal
Cornelia Meyer (born 1959 in Langenthal) an international economist, independent energy analyst and media commentator.

Pedro Lenz (born 1965 in Langenthal) a Swiss writer
Daniele Pantano (born 1976 in Langenthal) a poet, literary translator, artist, editor and scholar
Sport
Fritz Scheidegger (1930 in Langenthal - 1967) a Swiss sidecar racer, won two Sidecar World Championships.

Christophe Bühler (born 1974 in Langenthal) a Swiss former sprint freestyle swimmer, competed in the 2000 Summer Olympics
Stefan Grogg (born 1974), ice hockey player; member of the Swiss Men's National Team 1997
Bruno Sutter (born 1977 in Langenthal) a Swiss footballer, over 300 club caps, plays for FC Vaduz
Rémo Meyer (born 1980), football player, over 220 club caps
Fabienne Meyer (born 1981) a Swiss former bobsledder, competed in the 2010 and 2014 Winter Olympics
Thomas Reinmann (born 1983 in Langenthal) a former Swiss football defender, over 275 club caps
Sven Bärtschi (born 1992), ice hockey player
Carole Howald (born 1993 in Langenthal) a Swiss female curler
Friedrich August Flückiger (1828 in Langenthal - 1894) a Swiss pharmacist, chemist and botanist
Carl Friedrich Geiser (1843 in Langenthal – 1934) mathematician, specializing in algebraic geometry
Karl Jaberg (1877 in Langenthal – 1958) a Swiss linguist and dialectologist
Friedrich Born (1903 in Langenthal – 1963), ICRC diplomat, credited with rescuing between 11,000 and 15,000 Jews in Budapest
Adrian Aeschbacher (1912 in Langenthal – 2002) a Swiss classical pianist
Heinz Holliger (born 1939 in Langenthal) oboist, composer and conductor
Johann Schneider-Ammann (born 1952) businessman and politician, member of the Swiss National Council, lives in Langenthal
Cornelia Meyer (born 1959 in Langenthal) an international economist, independent energy analyst and media commentator.
Pedro Lenz (born 1965 in Langenthal) a Swiss writer
Daniele Pantano (born 1976 in Langenthal) a poet, literary translator, artist, editor and scholar
Sport
Fritz Scheidegger (1930 in Langenthal - 1967) a Swiss sidecar racer, won two Sidecar World Championships.
Christophe Bühler (born 1974 in Langenthal) a Swiss former sprint freestyle swimmer, competed in the 2000 Summer Olympics
Stefan Grogg (born 1974), ice hockey player; member of the Swiss Men's National Team 1997
Bruno Sutter (born 1977 in Langenthal) a Swiss footballer, over 300 club caps, plays for FC Vaduz
Rémo Meyer (born 1980), football player, over 220 club caps
Fabienne Meyer (born 1981) a Swiss former bobsledder, competed in the 2010 and 2014 Winter Olympics
Thomas Reinmann (born 1983 in Langenthal) a former Swiss football defender, over 275 club caps
Sven Bärtschi (born 1992), ice hockey player
Carole Howald (born 1993 in Langenthal) a Swiss female curler
Langenthal