Schwenk is a surname. Notable people with the surname include:
Adolph G. Schwenk (1922–2004), American Marine general Bud Schwenk (1917–1980), American football player Fran Schwenk (born c. 1948), American football player Hal Schwenk (1890–1955), American baseball pitcher Theodor Schwenk (1910–1986), German water researcher Thomas L. Schwenk (born 1949), dean of the University of Nevada School of Medicine Tripp Schwenk (born 1971), American swimmer Zane Schwenk (born 1975), American wakeboarder
See also Schwenk's theorem