No. R2D2 came from film editors' shorthand for a specific piece of film. George Lucas literally got asked by a coworker to "Hand me R2D2", meaning Roll 2 and

No. R2D2 came from film editors' shorthand for a specific piece of film. George Lucas literally got asked by a coworker to "Hand me R2D2", meaning Roll 2 and something-else 2 (I forget what the D was). Lucas did, but also wrote down in his notebook "R2D2. Cool name."