Joey Giambra (b. July 30,1931 as William Joseph Giambra), was a former middleweight boxer who faced and defeated most of the top contenders of his era. Giambra also defeated future middleweight champion, Joey Giardello, in two out of three matches.

Giambra never was given the opportunity to fight for the world middleweight championship. Interestingly, he defeated Rocky Castellani twice. Nevertheless, Castellani was given the opportunity to fight in an elimination bout for the world title against Sugar Ray Robinson.

On August 26,1955 world middleweight champion Carl "Bobo" Olsen agreed to fight Giambra in a non-title match on national TV. Giambra continually beat the champion to the punch and rocked him many times, but Olsen was awarded a split decision. After this bout, Giambra was hailed by many as the "uncrowned" king of the middleweight division.

Joey Giambra retired after 77 fights, in which he suffered 8 losses and two draws. He was never kayoed.

Giambra later became a referee and was the third man in the 1977 Jerry Quarry-Lorenzo Zanon heavyweight championship bout. He currently resides in Las Vegas, Nevada.