Bobby or Bob Diamond may refer to:
People Bob Diamond (actor) (1943–2019), American actor and lawyer, also known as Bobby Diamond and Robert Diamond Bob Diamond (banker) (born 1951), Anglo-American business executive Bob Diamond (engineer) (1959–2021), American trolley advocate responsible for rediscovery of the Atlantic Avenue Tunnel in Brooklyn in 1980
Fictional characters Bob Diamond (comics), Marvel Comics character since 1974 Bob Diamond, played by Rip Torn in 1991 American film Defending Your Life
See also Bobby Dimond (1930–2020), Australian rugby league footballer