Postcards from Buster is a live-action/animated children's television series that originally aired on PBS. It is a spin-off of the Arthur TV series. The show features Buster Baxter, an 8-year-old anthropomorphic rabbit and Arthur's best friend. The television series was created by Cookie Jar Group (now known as WildBrain), WGBH Boston, and Marc Brown Studios.

A backdoor pilot episode for the series, also titled "Postcards from Buster," originally aired as part of Arthur's eighth season on December 22, 2003. The official series aired on PBS Kids Go! from October 11, 2004, to February 20, 2012. The series went on a three-year hiatus between November 2008 and February 2012.

In Arthur, it is already established that Buster's parents are divorced, and his father is a pilot. This spin-off series revolves around Buster's travels with his father, Bo Baxter. Arthur Read and many other characters from Arthur make cameo appearances in this series, with many episodes featuring an Arthur character playing a minor role.