Robert or Rob Nelson may refer to:
Robert Nelson (cricketer, born 1912) (1912–1940), English cricketer
Tex Nelson (Robert Sidney Nelson, 1936–2011), American baseballer
Robert Nelson (cricketer, born 1970) (born 1970), English cricketer
Robert Nelson (American football) (born 1990), American football player
Rob Nelson (baseball) (born 1964), American baseball first baseman
Rob Nelson (biologist) (born 1979), American biologist and television personality
Robert Nelson (nonjuror) (1656–1715), English religious writer
Robert Nelson (insurrectionist) (1794–1873), Anglo-Quebecer physician and leading figure in the Lower Canada Rebellion
Robert H. Nelson (1853–1892), British Army officer and African explorer
Robert Frederick William Robertson Nelson (1888–1932), British Member of Parliament for Motherwell, 1918–1922
Robert Nelson (bishop) (1913–1959), British bishop of Middleton, 1958–1958
Robert Nelson (filmmaker) (1930–2012), American experimental filmmaker
Robert Lyn Nelson (born 1955), American artist
Robert T. Nelson (born 1936), retired vice admiral in the United States Coast Guard
Rob Nelson (reporter) (born 1978), American news reporter
Rob Nelson (talk show host) (born 1964), American talk show host and filmmaker
