Frederick or Fred Warner may refer to: Frederick Warner (diplomat) (1918–1995), British diplomat and politician Frederick Warner (engineer) (1910–2010), British chemical engineer Frederick Warner (politician) (1875–1952), Australian politician Fred M. Warner (1865–1923), Governor of the U.S. state of Michigan Fred Warner (baseball) (1855–1886), American baseball player Fred Warner (American football) (born 1996), American football player Fred L. Warner (1877–1942), politician in the Michigan House of Representatives