| A Certain Scientific Railgun | |
|---|---|
| Season 3 | |
 Blu-ray and DVD Volume 1 cover art 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 (also known as A Certain Scientific Railgun T), based on the manga of the same name, follows Mikoto Misaka teaming up with Misaki Shokuhō to stop the plans of Academy City's dark side during Daihasei Festival. It was produced by J.C.Staff and directed by Tatsuyuki Nagai from a series composition supervised by Shogo Yasukawa.
Rina Satō, Satomi Arai, Aki Toyosaki, and Kanae Itō reprise their roles from the previous two seasons of A Certain Scientific Railgun. 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 series composition writer in September 2019.
A Certain Scientific Railgun T began airing in Japan on January 10, 2020, and consists of twenty-five episodes. Several episodes got delayed due to the COVID-19 pandemic, which caused the season to conclude on September 25, 2020, instead of June as was originally scheduled.