The fan was arrested for being drunk and disorderly.
A football supporter was fined £90 ($114; 105 euros) on Wednesday after throwing a hamburger at a police horse as Manchester City and Celtic met in the Champions League on Tuesday.
The fan was arrested for being drunk and disorderly and spent Tuesday night in police cells after the incident in the centre of Manchester, a Greater Manchester Police (GMP) spokesman said.
"Man arrested Drunk & Disorderly throwing hamburger at police horse on @ManCity v @celticfc got £90 fine. Horse remains in stable condition," GNP tweeted.
"Man was released this morning with a £90 fine."
Earlier they tweeted: "Police horse 'Lancaster' is in a stable position after burger thrown at it by Celtic fan!"
A total of 14 people were arrested as a result of incidents around the match as City and Celtic drew 1-1 at the Etihad Stadium.