Vengeful vandals spray-painted the $3.4 million Brooklyn townhouse house of a wealthy Columbia University protester.

The front of James Carlson’s three-story Park Slope home was peppered with black Stars of David, along with “7-10” and “Never Again,” both references to Hamas terrorists’ Oct. 7 attack on Israel.

The graffiti, which likely was done Monday night and removed late Tuesday morning by workers renovating the posh protester’s residence, was “clearly some sort of revenge,” one neighbor told The Post.

Carlson, the son of millionaire ad execs Richard “Dick” Tarlow and Sandy Carlson Tarlow, participated in the April 30 anti-Israel takeover of Columbia’s Hamilton Hall. 

The longtime radical and outside agitator was caught on camera tussling with university janitor Mario Torres as rioters stormed the building. Carlson was charged with burglary, reckless endangerment, criminal mischief, conspiracy and criminal trespassing.

Additional reporting by J.C. Rice