Daily Double … this lawyer appears on “TMZ on TV” and “TMZ Live” and is now competing on “Jeopardy!” … Who is Derek Kaufman!!!

That’s true, our very own lawyer Derek is among the contestants on tonight’s episode of “Jeopardy!” … and everyone in the office is looking forward to ribbing him about his performance.

Derek and our other lawyer, Jason Beckerman, are huge ‘Jeopardy’ fans … who may or may not have a running competition on who can answer the most final Jeopardy questions correctly.

Well … Derek took a test, auditioned and then got picked for the game show … and now’s his big moment.