Flying Rhino Junior High is a Canadian animated television series produced by Nelvana Limited and STV Productions. It originally aired from October 3, 1998 to January 22, 2000 on CBS Kidshow. Reruns used to be shown on Scottish Television in Scotland. Reruns returned to YTV after a four year absence in 2011. In the US, both seasons can be purchased as downloads from Amazon Instant Video, and in Scotland the first season can be watched on YouTube.

The series revolved around four kids: Billy O' Toole, Marcus and Ruby Snarkus, and Lydia Lopez. The series' main antagonists are Earl P. Sidebottom, AKA The Phanthom and his rat sidekick Ratticus. Earl is a boy genius who some time before the series' beginning got a "D" grade in shop class and retreated to the school's sub-basement boiler room in shame. In there, he built a supercomputer capable of altering reality, which uses to cause chaos in the school as revenge, leaving the protagonists to stop him.