Frank Schaefer or Schaeffer may refer to:
Frank Schaefer (football manager) (born 1963), German football manager Frank Schaefer (minister) (born 1961), German-American author and LGBTQ advocate Frank Schaeffer (born 1952), American author and film director Frank E. Schaeffer Jr. (1905–1977), member of the Wisconsin State Assembly
See also Frank Schaffer (born 1958), East German athlete Frank Schäffer (1952–2024), German footballer Frank Scheffer (born 1956), Dutch cinematographer and producer Frank Shaffer (1859–1939), American baseball player