Moon Dancer is a supporting character of My Little Pony: Friendship is Magic. She is voiced by Kazumi Evans.
Moon Dancer is first mentioned in Friendship is Magic, part 1 by Twinkleshine and Spike. Twinkleshine says to Twilight Sparkle that "Moon Dancer is having a little get-together at the west castle courtyard," but Twilight declines the invitation to focus on her studies. Spike later accidentally ruins a gift for her after being knocked aside by Twilight.
Moon Dancer makes her first in-show appearance in Amending Fences. She is shown to be an asocial recluse, living alone in a dilapidated Canterlot house and focusing only on her studies. As a filly, she was friends with Twilight Sparkle. Twilight learns that after not showing up to the party Moon Dancer had thrown in the first episode, Moon Dancer became heartbroken and withdrawn, rejecting friendship altogether. Twilight approaches Moon Dancer as a potential friend and appears to reach her at first due to the two's mutual love of learning, but Moon Dancer eventually snubs her. After being lured to a party reminiscent of the one she had thrown, Moon Dancer vents her pent-up frustrations at Twilight. Twilight apologizes for the hurt she caused, and Moon Dancer comes to accept friendship once more. She is last seen playing a ball game with Twinkleshine, Lemon Hearts, and Minuette.
In The Cutie Re-Mark - Part 1, Moon Dancer sits next to Spike during Twilight's speech, waking him when he falls asleep while changing slides.
In Flutter Brutter, Moon Dancer is depicted in a photograph in Pinkie Pie's wallet.