Frank "Frankie" Genaro (born DiGennaro, August 26, 1901 – December 27, 1966) was an American former Olympic gold medalist and a 1928 National Boxing Association (NBA) World flyweight Champion.

Statistical boxing website BoxRec lists Genaro as the #13 ranked flyweight of all-time, while The Ring magazine founder Nat Fleischer placed him at #3.

He turned pro that same year and almost immediately was fighting world class flyweights, scoring wins over Charley (Phil) Rosenberg and Pancho Villa.

Genaro lost his American title to Fidel LaBarba in 1925 and dropped a decision to former world champ Newsboy Brown in his next outing.

On October 15, 1928, he defeated Frenchy Belanger in a ten round points decision to win the NBA flyweight crown at Toronto's Colliseum.