What do you think the boxers' real names are?
I try not to think too much on the boxers’ real names because I like to keep mysellf open for others’ headcanons on theirs. Buuut, I do have my own list. I based my real names on either play on words based on their ring names, the closest I can find to an already existing name (if their stage name has nicknames), borrowed from their voice actors in the Wii game, or inspired by a real life boxer that somewhat resembles their character designs.
Doc is excluded because we already have his canon real name (Jerome), and the SNES Super Punch-Out!! lore confirms Aran Ryan is using his real name. For the other boxers, I have:
Little Mac: [left deliberately open]
Glass Joe: Joseph Verre (Surname is ‘Glass’ in French)
Von Kaiser: Viktor Kaiser (because I love irony and ‘von’ as a German nobility particle has been dropped since 1919).
Disco Kid: Daniel Quick (play on his character archetype (“Disco Dan”) and Kid Quick. I sometimes call Disco ‘Danny’ in my head)
King Hippo: King Hippo. Leaving his name as is.
Piston Hondo: Hondo Kenji (named after his VA)
Bear Hugger: Bernard Newman (Bernard is Germanic (fits with French) meaning “brave as a bear”. Newman is taken from his VA)
Great Tiger: I actually have more than one. I previously named him Tipu Singh (Tipu meaning “tiger” in Sanskrit), but I became so fond of the first name that I stole it for myself. He’s now just Sumit Singh (named after is VA. 'Singh’ is indicative of a baptized Sikh (thus the turban), which means 'Lion’, so regardless of what first name he has, he’ll still have a big cat in his name)
Don Flamenco: Juan Escamillo (a play on the Don Juan archetype, as well as naming him after his VA. Surname is taken from toreador character of the opera 'Carmen’.)
Soda Popinski: Valeriy Mota (Valeriy meaning “to be healthy, to be strong” in reference to Soda being able to heal himself with in the fight. Surname is taken from his VA)
Bald Bull: Kostas Yagan (a play on Istanbul’s historic name, which in turn would be a play on his ring name. Surname is taken from his VA)
Super Macho Man: Michael Savage (named after his VA and a reference to Randy “Macho Man” Savage. Yes, I know Randy Savage isn’t his real name either.)
Mr. Sandman: Cassius Irons (taken from Cassius Clay Jr. (Muhammed Ali) and “Iron Mike” Tyson)
I’m not covering any other characters in the franchise because I don’t have a good enough grasps of their personalities to really think of real names (as applicable) for them.