This guy’s no Dad of the Year.

Police are looking for a knife-wielding father with a child in a stroller who threatened a fellow Manhattan subway rider for complaining about his allegedly abusive ways, according to a newly released video.

The suspect hit his toddler-age son on a northbound E train as it approached West 4th Street station at about 3:30 p.m. June 24, authorities said.

Another rider, who was on the train with his wife and child, got into an argument with the man about the man hitting his kid, police sources said.

The suspect then went ballistic, repeatedly telling the victim to “suck my d–k,” police sources said.

As he pushed his son’s stroller out of the train at the station, the suspect produced a knife and yelled at the man to come with him off the train, video of the altercation shows.

The suspect was last seen wearing a red shirt and a dark bandanna around his neck.