Rupert George Rosenblum (born 1 January 1942) is a former Australian Rugby Union player for the Australia national rugby union team.
Rosenblum played 3 test matches in 1969-1970; at that point in time, he and Myer Rosenblum were the second* father and son to have represented Australia in Rugby union. The McLeans- Douglas James 1904-05 and Alexander Douglas 1933-36 were the first, despite claims to the contrary.