Weidel is a surname. Notable people with the surname include:
Alice Weidel (born 1979), German far-right politician Gustaf Weidel (1890–1959), Swedish diplomat and gymnast Hans Weidel (1903–1985), German lawyer and military judge Hugo Weidel (1849–1899), Austrian chemist Johann Weidel (1904–?), Swiss boxer Karl Weidel (1923–1997), American politician