If O.J. Simpson wants a sit-down with "O.J. Simpson" -- Cuba Gooding Jr. says he's all the way down ... all The Juice has to do is call.
Cuba -- who famously played the killer in "The People v. O.J. Simpson" -- says he hasn't heard a peep from the disgraced 69-year-old since the series wrapped up ... but he's down for a face-to-face and explains why.
FYI, Simpson is eligible for parole in 2017 stemming from his armed robbery conviction ... so, see ya at Starbucks??