Blidberg is a Swedish surname. Notable people with the surname include:
( Blidberg) (1825–1886), Finnish soldier and civil servant Carl Blidberg (1867–1944), a Swedish businessman and footballer Einar Blidberg (1906–1993), a Swedish Navy officer (born 1944), a Swedish prosecutor Allan Blidberg, co-founder of the Blidberg Rothchild Company