A Certain Scientific Railgun season 3
| A Certain Scientific Railgun T | |
|---|---|
| Season 3 | |
| First home media volume cover, featuring Kuroko Shirai (L) and Mikoto Misaka (R) | |
| Starring | |
| No. of episodes | 25 | 
| Release | |
| Original network | AT-X | 
| Original release | January 10 – September 25, 2020 | 
| Season chronology | |
The third season of the Japanese animated television series A Certain Scientific Railgun, marketed as A Certain Scientific Railgun T, is based on the manga series of the same name written by Kazuma Kamachi and illustrated by Motoi Fuyukawa. The season follows Mikoto Misaka teaming up with Misaki Shokuhō to stop the plans of Academy City's dark side during Daihasei Festival. Produced by J.C.Staff, the season was directed by Tatsuyuki Nagai with series composition supervised by Shōgo Yasukawa.
A Certain Scientific Railgun T sees the return of the main cast members Rina Satō, Satomi Arai, Aki Toyosaki, and Kanae Itō. Azumi Asakura joins them as Shokuhō, whom she also voiced in the first and final episodes of A Certain Scientific Railgun S. Production of the third season was announced in October 2018, with Nagai returning as the director. Yasukawa was confirmed as the head of series composition for the season in September 2019.
The third season consists of 25 episodes and ran on AT-X from January 10 to September 25, 2020, with other networks following days later. Several episodes got delayed due to the COVID-19 pandemic, which caused the season to conclude a full three months later than originally scheduled. The series was announced to be renewed for a fourth season in February 2025.