A man was caught on video peeping into the bathroom of a Long Island home — and recording a woman and two children inside, police said.

The creep was spotted on home surveillance footage approaching the house on Harrison Street in Elmont shortly before 9:30 p.m. Saturday, Nassau County police said late Sunday.

In the video, he’s seen looking at his cellphone as he stands on the home’s covered porch before placing the phone to the bathroom window, which is just out of the camera’s view, police said.

Police said the 38-year-old homeowner’s sister, 24, and two young girls — ages 6 and 15 — were in the bathroom at the time.

The man recorded the footage for an unspecified amount of time before fleeing, cops said.