Robert Montgomery or Bob Montgomery may refer to:
Public officials and clergy
- Robert Montgomery (archbishop) (1541–1611), Archbishop of Glasgow, 1581–85
- Sir Robert Montgomery (administrator) (1809–1887), Irish-born British Colonial official in India
- Robert Morris Montgomery (1849–1920), American jurist
- Robert Montgomery (representative), Republican member of the Kansas House of Representatives
Writers and artists
- Robert Montgomery (poet) (1807–1855), English poet and minister
- Robert Hiester Montgomery (1872–1953), American accountant and educator
- Robert Montgomery (actor) (1904–1981), American actor and director
- Bob Montgomery (songwriter) (1937–2014), American singer/songwriter and music producer/publisher
- Robert Douglass Montgomery (1907-1966), American actor
- Robert Montgomery (artist) (born 1972), Scottish artist
Sports personalities
- Robert Montgomery (sport shooter) (1891–?), Canadian sport shooter who won silver medal for Canada at the 1920 Summer Olympics
- Bob Montgomery (boxer) (1919–1998), American lightweight boxer
- Bob Montgomery (baseball) (born 1944), American catcher and color commentator
- Robert Montgomery (boxer) (born 1983), Canadian super heavyweight boxer who represented Canada at the 2006 Commonwealth Games
Others
- Robert Montgomery (Medal of Honor) (1838–after 1864), American Naval Captain and Medal of Honor recipient
- Robert Montgomery (lawyer) (1930–2008), American litigator
- Robert Montgomery (physician), American transplant surgeon
- Robert Montgomery (British Army officer) (1848–1931), British general