Rosenblum is a Jewish surname of German origin, which means "rose flower". Notable people with the surname include:
Adi Rosenblum (born 1962), Israeli artistBernard Rosenblum (1927–2007), French artistConstance Rosenblum (born 1943), American writerEllen Rosenblum (born 1951), American politicianGay Rosenblum-Kumar (born 1955), American administratorHerzl Rosenblum (1903–1991), Israeli journalist and politicianIrit Rosenblum (born 1958), Israeli lawyer and political activistJohn Frank Rosenblum (born 1970), American filmmakerJonathan Rosenblum (born 1951), American rabbi and journalistJoshua Rosenblum (born 1963), American musicianLawrence J. Rosenblum (born 1949), American mathematicianMary Rosenblum (born 1952), American writerMendel Rosenblum (born 1962), American computer scientistMichael Rosenblum (born 1954), American journalistMort Rosenblum (born 1944), American journalistNina Rosenblum (born 1950), American filmmakerPnina Rosenblum (born 1954), Israeli actress, fashion model, businesswoman and politicianRalph Rosenblum (1925–1995), American film editorRebecca Rosenblum (born 1978), Canadian writerRobert Rosenblum (1927–2006), American art historian and curatorSteven Rosenblum (born 1954), American film editorWalter Rosenblum (1919–2006), American photographerYair Rosenblum (1944–1996), Israeli composer