Weichel is a surname. Notable people with the surname include:
Alvin F. Weichel (1891–1956), American politician from Ohio Daniel Weichel (born 1984), German mixed martial artist Nicolai Weichel (born 1997), Danish ice hockey player Oscar Weichel (1894–1968), Canadian federal politician Per Weichel (born 1942), Danish sports shooter William George Weichel (1870–1949), Canadian merchant and politician