Semon

Semon may refer to:


 * Charles Semon (1814–1877), German and British businessman, politician and philanthropist
 * Felix Semon (1841–1921), German neurobiologist and laryngologist
 * Henry Semon (1884–1958), American farmer, businessman, and politician
 * Larry Semon (1889–1928), American actor, director, producer, and screenwriter during the silent film era
 * Mo Chuaroc moccu Neth Semon (fl. c. 600?), an Irish monk and scholar of the Early Middle Ages
 * Richard Semon (1859–1918), German zoologist and evolutionary biologist
 * Waldo Semon (1898–1999), American inventor born in Demopolis, Alabama