Cops are looking for a subway creep who allegedly touched himself inappropriately while staring at a woman in August.

Authorities said the unidentified man began to fondle himself in froth of the unsuspecting 25-year-old woman on Aug. 5 at around midnight while on a southbound D train.

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The woman told police she noticed the suspect standing across from her with his hands down his pants, staring at her as he manipulated himself.

Investigators said the man said something to the victim before he bolted as it stopped at a downtown Brooklyn subway platform.

NYPD released a photo of the suspect, who they describe as a bald, black last seen wearing a black baseball cap, blue sneakers, blue shirt and glasses.

Anyone with information in regards to the suspect is asked to call Crime Stoppers at 1-800-577-TIPS (8477), or by texting tips to 274637 (CRIMES) then enter TIP577.