Sunny Day is an American animated children's television series produced by Silvergate Media. The series revolves around Sunny (voiced by Lilla Crawford), a tween-age hairdresser who runs her own hair salon with the help of her dog Doodle (Rob Morrison), hair colorist Rox (Élan Luz Rivera), and receptionist Blair (Taylor Louderman). Sunny's best customers are Timmy (Kevin Duda), who is in charge of hosting events and shows in Sunny's hometown, and Cindy (Melissa van der Schyff), the unlucky town chef who has a constant bad hair day. The series is loosely based on the Random House picture book series Fairytale Hairdresser by Abie Longstaff and illustrated by Lauren Beard. Each episode features an original song written by Peter Lurye.

For the first season, 40 episodes were produced by Silvergate Media in association with the Canadian animation company Pipeline Studios. On April 5, 2016, the show was renewed for a second season of 20 episodes. The series premiered on Nickelodeon in the United States on August 21, 2017. New episodes moved to the separate Nick Jr. Channel in October 2018. The show also aired in Canada on Treehouse TV and on Nick Jr. and Milkshake! in the United Kingdom.