Ray J's Dog is Lost -- 3-lb Boogotti Has Gone Missing!!!

Ray J is on the hunt for his missing puppy and he'll stop at NOTHING to get him back.

Ray J’s manager, David Weintraub, tells TMZ ... Ray J's Maltese puppy Boogotti somehow slipped out of his gated community home in the San Fernando Valley last night. Boogotti is less than a year old and weighs about three pounds. CUTE!!!!!

We're told Ray J is seriously broken up about it and spent the night looking for him in the rain. Ray J is working all day today, so he's looking for a bloodhound rescue team to go out and try and find his beloved pup.