Frank Knight (disambiguation)

Frank Knight (1885–1972) was an American economist.

Frank Knight may also refer to:


 * Frank Knight (arborist) (1908–2012), American arborist
 * Frank Knight (artist) (born 1941), Australian wildlife artist and ornithologist
 * Frank Knight (writer) (1905–1998), British author of fiction and non-fiction
 * Frank Knight (Canadian football), Canadian football player and coach
 * G. A. Frank Knight (1869–1937), Scottish author and Bible scholar