Police said the man was being questioned. The incident during Wednesday night's game was being investigated as a "simple battery."
Victorino was hit by a cup of beer thrown from the bleachers while trying to catch a fly ball in the Phillies' 12-5 win over the Chicago Cubs. The All-Star outfielder managed to make the grab, and Cubs chairman Crane Kenney apologized to him in person before Thursday's game.
"It's part of the game. It's one of those things that happens and I just want to make sure that guy gets what's due," Victorino said prior to the Phillies' 6-1 win.
"I think he needs to be held accountable. But for the most part, I just see it as the guy thought it was fun. It is what it is. It didn't cost me in any way and it didn't hurt me in any way. It's part of the ballgame," he said.
Victorino filed the police report Thursday. Shortly after the game, police said a man turned himself in.
Cubs chairman Crane Kenney, manager Lou Piniella and general manager Jim Hendry apologized to Victorino.
"I said, 'Listen, sorry,"' Kenney said after talking to Victorino near the Phillies' dugout.
"It shouldn't have happened here. It's not a good reflection on our city or organization," he said. "We're going to do whatever we can to make sure that things are made right here. And he said, 'I know you are and I appreciate your help."'
Victorino was on the warning track and in front of the ivy-covered wall, set to catch a sacrifice fly by Jake Fox in the fifth inning, when the cup of beer came flying out of the bleachers and went all over him.
According to local media reports, security personnel questioned a man who was taunting Victorino while the fan who actually threw the beer got away.
"I just think that, not so much that I want to press charges or file anything against him. I just think he's probably sitting at home thinking he got away with it. I hope that he gets the understanding that you can't be doing things like that," Victorino said.
"I don't think he'd be walking too far if something like that happened in the streets. It's just not something that you do. For the most part, in the big picture, this guy should be held accountable and something should be done," he said. Kenney called the incident "an assault."
"The obvious one is he threw some beer on him. But let's say the beer was in his eyes and he got hit in the head. Then, what's the next thing that gets thrown from the stands?" Kenney said. "It just can't happen for safety reasons and it's just not right."
One of baseball's most-known beer showers also came in Chicago. In the 1959 World Series against the Los Angeles Dodgers, White Sox outfielder Al Smith was at the wall trying to track a home run when a fan's beer sprayed in his face.
The picture of Smith getting doused - the beer spilled when the fan tried to catch the ball - remains one of baseball's most famous photos.