Katy O'Kitty is a character appearing only in The Tom and Jerry Show (1975) episode "The Police Kitten". She is a female police cat rookie, by letting her ride with Tom and Jerry and doing their job better than they are, which causing them to be green with envy.
- Kathy Gori voices Katy O'Kitty. Gori is best known for such Hanna-Barbera voice roles as Gidget Lawrence on the November 18, 1972 ABC Saturday Superstar Movie, Gidget Makes The Wrong Connection, Lori on Inch High, Private Eye (NBC, 1973-74), Katie on Valley Of The Dinosaurs (CBS, 1974-76), and the Fran Drescher-esque Rosemary the telephone operator on Hong Kong Phooey (ABC, 1974-76). She also voiced Sarge on DePatie-Freleng's Bailey's Comets (CBS, 1973-75).
- Katy O'Kitty bears a resemblance to Tom's white female feline (whom he loses out) in the 1956 T&J short, Blue Cat Blues, which was one of the rare T&J theatricals which, like the 1975 T&J series, depicted the friendly enemies Tom & Jerry as pals.