This guy is about to be Facebooked — and he only has himself to blame.

Cops are hot on the heels of a smoky-eyed Bronx thief whose dumb plan to steal a woman’s smart phone went up in flames when he apparently posted pictures of himself smoking marijuana on his victim’s Facebook page.

Police say the thief jumped the woman on East Tremont Ave. near the Grand Concourse at 3 a.m. on March 2 and ran off with her cell phone. The woman was not injured, cops said.

Investigators were trying to track the thief down when he literally sent them a big clue: The suspect took a picture of himself huffing a thick cloud of smoke that went directly to his victim’s Facebook page, police sources said.

The woman gave the picture to authorities as soon as she saw it.

Cops say it’s only a matter of time before the thief joins a growing list of not-so-smart smart phone thieves who swipe high-end electronics and then use the items to incriminate themselves.

On Dec. 21, police say Felicia Cooks and a few friends allegedly beat up a teen at a Bronx bus stop for her iPod. Cooks was arrested when photos of the Hawthorne teen posing in front of a mirror and making a kissy faces ended up on the victim’s Facebook account.

More recently, a California mom was arrested after she swiped an iPad from a customer in Costco and then let her kids snap a photo of her that was mistakenly beamed to the victim’s cloud account, officials said.