Pinky Dinky Doo is an animated children's television series created by Jim Jinkins. It was produced and co-owned by Jinkins' Cartoon Pizza and Sesame Workshop. The series was made in association with Discovery Kids Latin America, and the Canadian Broadcasting Corporation (season 1). For the second season, Abrams Gentile Entertainment, and the Canadian studio Keyframe Digital Productions joined as production companies. Each episode follows an imaginative pink-haired girl named Pinky Dinky Doo, her brother Tyler and pet Mr. Guinea Pig as she makes up her own stories.

The character of Pinky Dinky Doo was created by Jim Jinkins as a bedtime story for his daughter. In 2002, he developed the idea into a two-part web series, produced by his company Cartoon Pizza alongside Sesame Workshop. In 2003, Random House released a series of six children's books featuring the character, and on April 5, 2005, the show's first season made its worldwide premiere on Discovery Kids in Latin America. The show was first broadcast in English on CBC Television in December 2005. The show would eventually aired in the United States on Noggin beginning in April 10, 2006 and aired until 2011, when it was rebranded as the Nick Jr. Channel in 2009.

From January 17, 2016 to January 2, 2021, the series aired in reruns on HBO Kids as part of HBO's deal with Sesame Workshop. It was also added to the HBO Max streaming service upon its launch on May 27, 2020, before being taken off on January 2, 2021. Until November 2022, the series was available on Sensical, a free streaming service by Common Sense Media.