Mowat is a surname of Scottish origin, and may refer to:
Angus Mowat (1892-1977), Canadian librarian, novelist, father of Farley Mowat
Claire Mowat (born 1933), Canadian writer of children's fiction, environmentalist
Farley Mowat (1921-2014), Canadian novelist, environmentalist, husband of Claire Mowat
Henry Mowat (1734-1798), Royal Navy officer
John Mowat (1872-1916), Canadian politician, lawyer, World War I officer
John Mowat (1825-1900), Canadian Presbyterian Minister, Queen's University professor
John Mowat (1791-1860), Scottish-born soldier; Canadian merchant, politician and educator
Oliver Mowat (1820-1903), Canadian politician; Premier of Ontario 1872-1896