Police have collared the goon who knocked an elderly woman to the ground in a random attack — a convicted sex offender with more than 100 prior arrests, according to police and sources.

“Thanks to the outstanding work of @NYPDDetectives, this suspect has been apprehended,” Police Commissioner Dermot Shea tweeted Tuesday.

The 92-year-old woman was pushed down while walking down Third Avenue near East 16th Street in the Gramercy Park neighborhood at about 3:30 p.m. Friday, police said.

Video footage was released of the attack Monday night, and by Tuesday morning, police had 31-year-old Rashid Brimmage in custody on a charge of assault, cops said.

Police sources said cops recognized the attacker, who has had dozens of run-ins with law enforcement — including 101 arrests.

Additional reporting by Larry Celona