Pete Davidson Harassed by Overzealous Knicks Fan, Shoves Him Away

Pete Davidson's New York Knicks took home a big win, but one fan might wanna take a lesson in personal space ... cuz he got wayyy too far into Pete's zone.

Check out the video, Pete was posing for pics and high-fiving a bunch of his fellow Knick fans as he left Madison Square Garden Sunday afternoon. You see Pete appears to pose for a pic with one dude in a pink shirt and blue cap and continues to move through the crowd.

That clearly wasn't enough for the fan though, who continued to follow Pete ... putting his arm around the comedian and resting his head on Pete's shoulder.

Pete tries to stay cool, taking more pics with others, but when the overzealous fan continued to get all up in his grill Pete understandably snaps ... shoving the dude away and telling him to back off.

Finally, the fan takes a hint and leaves Pete alone.

While his exit was stressful, the good news for Pete is the Knicks defeated Cleveland to take a 3-1 series lead ... not to mention, he got to share a seat next to (and likely some laughs with) Jon Stewart.