Robert or Bob Beck may refer to:

• Bob Beck (1944–2008), Guamanian zoologist and conservationist
• Robert Beck (actor) (born 1968), British television actor
• Robert Beck (painter) (born 1950), American painter
• Robert Beck (pentathlete) (1936–2020), American pentathlete
• Robert Beck or Iceberg Slim (1918–1992), writer and former pimp
• Robert F. Beck (born 1943), professor of naval architecture and marine engineering at the University of Michigan
• Robert J. Beck (born 1961), scholar of international law and international relations
• Robert Nason Beck (1928–2008), pioneer radiologist
• Robert K. Beck (1915–2004), American politician and newspaper publisher