My Isekai Life: I Gained a Second Character Class and Became the Strongest Sage in the World! (転生賢者の異世界ライフ 〜第二の職業を得て、世界最強になりました〜, Tensei Kenja no Isekai Raifu ~Daini no Shokugyō o Ete, Sekai Saikyō ni Narimashita~), or simply My Isekai Life, is a Japanese light novel series written by Shinkoshoto and illustrated by Huuka Kazabana. It began serialization online in October 2017 on the user-generated novel publishing website Shōsetsuka ni Narō. It was later acquired by SB Creative, who has released the series since May 2018 under their GA Novel label.
A manga adaptation with art by Ponjea has been serialized online since July 2018 via Square Enix's online manga magazine Manga Up!. The manga is licensed in North America by Square Enix. An anime television series adaptation by Revoroot aired from July to September 2022.