A germaphobic punk punched an elderly man who sneezed near him at a Queens subway station Wednesday, police said.

The thug slugged on the left side of the sneezy 68-year-old’s face on the mezzanine at the Roosevelt Avenue- 74th Street subway station in Jackson Heights about 6:30 p.m. Christmas Eve, cops said Thrusday.

The blow sent the victim tumbling to the station’s floor. The attacker then then fled through the station’s doors and is still at large.

The victim suffered bruises on the back of his head, but did not black out. He was treated at Elmhurst Hospital.

According to surveillance footage, the suspect appears to be in his thirties and six feet tall. He was wearing dark sunglasses and a waist-length jacket.

Cops are asking anyone who can identify him to call 1-800-577 TIPS, or to visit the Crime Stoppers’ website at http://www.nypdcrimestoppers.com.