Rentschler is a surname. Notable people with the surname include:

Carrie Rentschler, academician in Feminist studies, scholar, writer, associate professor at McGill University, Montreal, Quebec, Canada Frederick Rentschler (1887–1956), American aircraft engine designer, aviation engineer, and industrialist Gordon S. Rentschler (1885–1948), American businessman, a chairman of First National City Bank, a predecessor of Citigroup Harvey C. Rentschler (1880–1949), American physicist, inventor, and research direct at Westinghouse Lamp Plant Jack Gilbert Rentschler (born 1931), American politician, member of the South Dakota House of Representatives Thomas Rentschler (1932–2016), American politician, member of the Ohio House of Representatives

Other Rentschler (company), German company

See also Garver-Rentschler Barn, a registered historic building in Hamilton, Ohio, United States Rentschler Farm Museum, a historic site near downtown Saline, Michigan Rentschler Field, an airport in East Hartford, Connecticut in use from 1933 to 1999 Rentschler Heliport, a private heliport for the exclusive use of United Technologies Corporation, located southeast of East Hartford, Connecticut Rentschler House, a historic residence in the city of Hamilton, Ohio, United States Hooven-Owens-Rentschler, American manufacturer of steam and diesel engines in Hamilton, Ohio, also known as H.O.R. Pratt & Whitney Stadium at Rentschler Field, a sports stadium in East Hartford, Connecticut