Clone Captain

"So if you're a captain, and I'm a Jedi, then technically I outrank you, right?''" "In my book, experience'' outranks everything."

- Jedi Padawan Ahsoka Tano and Clone Captain Rex, upon becoming acquainted with each other for the first time

Clone Captain was a rank held by clone troopers in the Galactic Republic's Grand Army, such as Clone Captain Rex, who was in charge of the 501st Legion. The Republic Navy also had captains, generally not clones, who commanded warships.