Kathleen Barr (born April 6, 1967) is a Canadian voice actress who is known for voicing Trixie and Queen Chrysalis in My Little Pony: Friendship is Magic, Marie and Kevin in Ed, Edd n Eddy, and Mrs. Twombly and Jasper Jones in Littlest Pet Shop.

For Disney, she voiced Gali Nuva in Bionicle: Mask of Light, Lance Penn in Dragon Booster, Roodaka and Rahaga Gaaki in Bionicle 3: Web of Shadows, Ssoso and Doga in Pucca, and Shanai in Slugterra.