Tröger, Troeger and Troger are German surnames. Notable people with these surnames include:
People named Tröger Christian Tröger (born 1969), German swimmer Hans Tröger (1896–1982), German general Julius Tröger (1862–1942), German chemist Markus Tröger (born 1966), German speed skater Paul Tröger (1913–1992), German chess player and sport journalist Rudi Tröger (1929–2025), German painter and academic Sabine Tröger (born 1967), Austrian sprinter Willy Tröger (1928–2004), German footballer
People named Troeger Heinrich Troeger (1901–1975), German jurist and politician Vera Troeger, German political scientist
People named Troger Barbara Troger (born 1966), Austrian sport shooter Margitta Troger (fl. late 1950s), East German slalom canoeist Paul Troger (1698–1762), Austrian painter, draughtsman, and printmaker
See also Tröger's base, an organic compound, named after Julius Tröger