The twenty-third season of the American animated sitcom series South Park premiered on Comedy Central on September 25, 2019, and concluded on December 11, 2019 after 10 episodes aired.

Trey Parker and Matt Stone continued to write, direct, and edit every episode the week prior to air, as the duo has done since the series' debut.

[2] Similar to previous seasons, the season features continuing elements and a recurring storyline for the first six episodes while lampooning ICE detention centers, the 2019 film Joker, media censorship in China, the anti-vaccine movement, plant based food, the Trump Administration, transgender people in sports, and the competition between traditional cable television and media streaming.

During these episodes, the theme song's lyrics and graphics were changed to focus on Tegridy Farms and also featured vocals by Randy Marsh and Towelie.

On October 7, 2019, South Park was reportedly banned from the Chinese Internet with videos, mentions, and discussion forums for the animated series being removed and shut down in response to episode 2 of the season, "Band in China".