Radler is a surname. Notable people with the surname include:
Błażej Radler (born 1982, Rydułtowy), Polish professional footballer
F. David Radler (born 1944, Montreal, Quebec), Canadian executive and close associate of Conrad Black
Dorothy Raedler (born 1917, New York City)
Johann Rädler (born 1952), Austrian politician (ÖVP)
Josef Karl Rädler (1844–1917), Austrian porcelain painter
Antonie Rädler (1899–1991), founder of the Maria vom Sieg of Wigratzbad
