Black Krrsantan, or simply Krrsantan, sometimes Black K, BK or Santy, is a fictional character in the Star Wars franchise. Created by writer Kieron Gillen, artist Salvador Larroca, and editors Jordan D. White and Heather Antos, he first appeared in Marvel Comics' 2015 Darth Vader comic book series as a major antagonist, before returning as a supporting character in its 2016 spin-off comic book series, Star Wars: Doctor Aphra, as well as 2015's ongoing Star Wars comic book series. He made his first live-action appearance in the Disney+ miniseries The Book of Boba Fett (2022), mainly portrayed by Carey Jones.

The Book of Boba Fett is an American space Western television miniseries created by Jon Favreau for the streaming service Disney+. It is part of the Star Wars franchise and a spin-off from The Mandalorian, taking place in the same timeframe as that series and its other interconnected spin-offs after the events of the film Return of the Jedi (1983). The Book of Boba Fett follows bounty hunter Boba Fett from The Mandalorian and other Star Wars media as he establishes himself as the new crime lord of Jabba the Hutt's former territory.