Robert or Rob Bell may refer to:

• Robert Charles Bell (engraver) (1806–1872), Scottish engraver
• Robert Anning Bell (1863–1933), English artist and designer
• Robert Bell (artist and curator) (1946–2018), Australian artist and curator
• Robert "Kool" Bell (born 1950), American singer, songwriter, and bassist with Kool & the Gang
• Robert Bell, musician and bassist with The Blue Nile
• Rob Bell (TV presenter) (born 1979), British TV presenter

• Robert Bell (writer) (1800–1867), Irish journalist & editor
• Robert Charles Bell (1917–2002), author of several books on board games
• Rob Bell (Robert Holmes Bell Jr., born 1970), American author, Christian speaker and pastor

• Robert C. Bell (1880–1964), U.S. federal judge
• Robert M. Bell (born 1943), chief judge of the Maryland Court of Appeals
• Robert Holmes Bell (1944–2023), U.S. federal judge
• Robert D. Bell (born 1967), justice of the Oklahoma Court of Civil Appeals

• Robert Bell (speaker) (died 1577), British statesman
• Robert Bell (died 1639) (1589–1639), English landowner and politician
• Robert Bell (Lanark County politician) (1808–1894), Canadian legislator
• Robert Bell (Ottawa politician) (1821–1873), Canadian legislator
• Robert Bell (Toronto politician) (1827–1883), Orangeman and legislator in Ontario, Canada
• Robert Duncan Bell (1878–1953), acting governor of Bombay during the British Raj, 1937
• Robert Bell (Minnesota politician) (1926–2014), Minnesota politician
• Robert Bell (Australian politician) (1950–2001), Australian politician
• Chris Bell (politician) (Robert Christopher Bell, born 1959), U.S. representative from Texas
• Rob Bell (Virginia politician) (born 1967), member of the Virginia House of Delegates

• Robert Bell (Canadian geologist) (1841–1917), Canadian geologist
• Robert Bell (Irish geologist) (1864–1934), Northern Irish amateur geologist
• Robert E. Bell (1914–2006), American archaeologist
• Robert Edward Bell (1918–1992), Canadian nuclear physicist and principal of McGill University
• Robert James Bell (born 1975), known as Dr Rob, scientist, and host of Australian children's television programme Scope

• Robert William Bell (1875–1950), England international rugby player
• Bunny Bell (Robert Bell, 1911–1988), English footballer who played for Tranmere Rovers and Everton
• Bobby Bell (Scottish footballer) (Robert McDicken Bell, 1934–2007), association football player for various English and Scottish clubs
• Rob Bell (baseball) (Robert Allen Bell, born 1977), American baseball player
• Robert Bell (racing driver) (born 1979), British racing driver

• Robert Bell (publisher) (1732–1784), American printer and publisher
• Robert Bell (priest) (1808–1883), archdeacon of Cashel
• Robert Bell (physician) (1845–1926), English physician and medical writer
• Robert Fitzroy Bell (1859–1908), Scottish publisher and founder of the Edinburgh students' representative council
• Robert J. T. Bell (1876–1963), Scottish mathematician
• Robert Huntley Bell (born 1946), American academic
• Robert P. Bell (1918–1992), president of Ball State University

• Bob Bell (disambiguation)