Big Hero 6: The Series is an American superhero animated children's TV series that aired between November 20, 2017, and February 15, 2021. The show was produced by Disney Television Animation and was created by Mark McCorkle and Bob Schooley, also known for co-creating Buzz Lightyear of Star Command and Kim Possible. The show is based on Disney's 2014 film Big Hero 6, which itself is loosely based on the comic book series of the same name published by Marvel Comics. The show acts as a follow-up to the original film and uses traditional hand-drawn animation.

It premiered with a 43-minute episode titled "Baymax Returns" on Disney XD on November 20, 2017. In 2018, the series was moved from Disney XD to Disney Channel before the series premiere. The series formally premiered with two new episodes on Disney Channel on June 9, 2018.

The second season premiered on May 6, 2019, with a third season confirmed prior. The third season premiered on September 21, 2020, on Disney XD. The third season features predominantly 11-minute episodes, as opposed to the 22-minute episodes of the first two seasons. Cast members stated on January 28, 2021, that the series would not return for a fourth season and the series finale aired on February 15, 2021.

In December 2020, Disney announced a spinoff series titled Baymax! and produced by Walt Disney Animation Studios. The series was released on Disney+ on June 29, 2022.