Radtke is a German surname. Notable people with the surname include:
Bernhard Radtke (born 1949), East German weightlifter Charles Radtke (born 1964), American furniture maker Dennis Radtke (born 1979), German politician Dinah Radtke (born 1947), German activist Helga Radtke (born 1962), German long and triple jumper Jack Radtke (1913–2006), American baseball player Jan Radtke (1872–1958), Polish politician Katarzyna Radtke (born 1969), Polish racewalker Kathleen Radtke (born 1985), German footballer Kristen Radtke (born 1987), American writer and illustrator Peter Radtke (1943–2020), German actor and playwright Randall J. Radtke (born 1951), American politician
See also Radke