Francois Etoundi assaulted Gareth Evans, also a weightlifter, in the athletes' village on Wednesday morning, Glasgow Sheriff Court heard.
The assault followed an earlier verbal exchange between the pair relating to Mr Evans' athlete girlfriend.
Sheriff Andrew Cubie said Etoundi, 29, had brought "the law of the playground" into the athletes' village, while his behaviour "undermines the concept of the friendly games".
Defence lawyer David Hunter said Etoundi, who is originally from Cameroon, was "bitterly bitterly disappointed".
The court heard that the assault had taken place at approximately 5.30am, after Mr Evans left the athletes' dining room with a Team England weightlifter.
This followed a verbal altercation at around 4.45am during which Mr Evans ignored Etoundi, the court was told.
Mr Hunter said that Etoundi had gone to the dining room and was being congratulated on his bronze medal success by other athletes including a female athlete - Mr Evan's girlfriend - who "took hold of him".
"He (Mr Evans) was not impressed and words were exchanged."
The court was told that Mr Evans suffered an "uncomplicated fracture to his nose", was prescribed pain killers and given minor head injury advice.