Robert Webster may refer to:
Robert Webster (virologist) (born 1932), New Zealand avian influenza expert Sir Robert Webster (politician) (born 1951), Australian company director, grazier, parliamentarian and chancellor of University of New South Wales Robert K. Webster (born 1938), American phytopathologist Robert M. Webster (1892–1972), United States Air Force major general Robert N. Webster, a pseudonym of Raymond A. Palmer Robert Webster, footballer, co-founder of Norwich City F.C. Robert Edward Webster (1928–1999), American plastics technician who defected to the Soviet Union in 1959, returning in 1962 Robert Grant Webster, British member of the UK Parliament for St Pancras East Bob Webster (born 1938), American Olympic diving champion