Samantha Ronson's New Girlfriend ID'd!

The new gal on the arm of Samantha Ronson last night was scenester Liat Baruch!

But this wasn't Sam's first date with the party girl who counts Kirsten Dunst and Nicole Richie as friends.

"They've been dating for weeks, now!" a source tells X17online exclusively.

Baruch, who worked on the film Brokeback Mountain, has been following Sam to all of her gigs lately. Hmm, does that sound familiar?

But that's not the only thing Liat has in common with Samantha's previous girlfriend, Lindsay Lohan.

Liat, who also worked as Kirsten Dunst's assistant, once admitted under oath that she dabbled in drugs!

But despite these similarities, it looks as if Samantha and Liat have a lot more in common than Samantha and Lindsay did. They're both Jewish, they're closer in age, and they both love plaid!