William Maunder Crocker (born 1843 Devon, England - died 1899 Surrey, England) was an administrator in Borneo.
Crocker was educated at a private school in Plymouth.
In 1864, Crocker joined the Sarawak civil service, eventually deputising for the Rajah. In 1887, he became Governor of British North Borneo. The Crocker Range, Sabah, Borneo is named for him.
He died in Surrey, England in 1899.