Heavenly Delusion (Japanese: 天国大魔境, Hepburn: Tengoku Daimakyō, lit. 'Heaven Grand Makyō') is a Japanese anime television series based on the manga series of the same name by Masakazu Ishiguro. The series was produced by Production I.G and directed by Hirotaka Mori. It was broadcast for 13 episodes on Tokyo MX and other networks from April to June 2023. The story is divided in two storylines with one involving the characters Maru and Kiruko as they travel across a post-apocalyptic world, while another story focuses on a group of children who live in a school.

Mori and the production side had to think about the overall structure, so Ishiguro had to tell them the story to the end. Because of this, he asked the editorial department to appoint a separate editor, specifically for the anime. The series adapts the first six volumes of the manga. Mori and his colleagues worked to properly convey the setting seen in the manga, while balancing the screen time between Maru and Kiruko, and the students from Heaven.

The anime adaptation has been positively received for its animation, and its focus on relationships and gender issues. It has been regarded as one of the best anime of 2023.