A Certain Scientific Railgun season 2
| A Certain Scientific Railgun S | |
|---|---|
| Season 2 | |
| First home media volume cover, featuring Mikoto Misaka (L) and Kuroko Shirai (R) | |
| Starring | |
| No. of episodes | 24 | 
| Release | |
| Original network | AT-X | 
| Original release | April 12 – September 27, 2013 | 
| Season chronology | |
The second season of the Japanese animated television series A Certain Scientific Railgun, marketed as A Certain Scientific Railgun S, is based on the manga series of the same name written by Kazuma Kamachi and illustrated by Motoi Fuyukawa. The season follows Mikoto Misaka in her attempt to stop the deadly project that involves her clones and the most powerful esper in Academy City named Accelerator, with unlikely help from Toma Kamijo. Produced by J.C.Staff, the season was directed by Tatsuyuki Nagai with series composition supervised by Seishi Minakami.
A Certain Scientific Railgun S sees the return of the main cast members Rina Satō, Satomi Arai, Aki Toyosaki, and Kanae Itō, with the addition of Nozomi Sasaki and Atsushi Abe from A Certain Magical Index television series.
The second season consists of 24 episodes and ran on AT-X from April 12 to September 27, 2013, with other networks following days later. A third season was announced in October 2018.