Robert Blyth may refer to:
Robert Blyth (footballer) (1900–1956), Scottish footballer Robert Blyth (bishop) (1470–1547), bishop of Down and Connor Robert Henderson Blyth (1919–1970), Scottish landscape painter and artist Bob Blyth (Robert Fleming Blyth, 1869–1941), Scottish footballer and manager
See also Robert Blythe (disambiguation)