The 41-year-old actor's friend, writer Gavin McInnes, posted a photo of Theroux and a couple of male friends on Instagram, reported People magazine.
"Double Date Dream Dolls. Bachelor party last night..," posted McInnes.
Theroux, whose fiancee Jennifer Aniston is in LA, was spotted visiting the set of 'The Secret Life of Walter Mitty', directed by his friend Ben Stiller earlier this week and he also dined at Nobu in Tribeca on Friday night.