Philip Johnston may refer to:Philip Johnston (entrepreneur), Co-founder and CEO of Starcloud Philip Johnston, colonel of the New Jersey militia who died at the Battle of Long Island Philip Johnston (1892–1978), proposed the idea of using the Navajo language as a code in World War II Phillip Johnston, American avant-garde jazz saxophonist Philip W. Johnston (1944–2025), Massachusetts politician Philip Johnston (1966–2017), estate agent from Belfast, Northern Ireland Philip Mainwaring Johnston (1865–1936), British architect and architectural historian Phil Johnston (filmmaker), American filmmaker and voice actor