| Basics | |
| Name | (Misaka Mikoto)  | 
|---|---|
| Other Names | Sister Railgun, Bili Bili Onē-sama(By Kuroko and Sisters), The Ace of Tokiwadai, Railgun  | 
| Birthday | May 2 | 
| Horoscope | ♉Taurus | 
| Age | 14 | 
| Height | 161cm | 
| Weight | 45kg | 
| Eye Color | Tea | 
| Hair Color | Tea | 
| Character Voicing | Rina Satō(Japanese) Brittney Marie Karbowski(English)  | 
| Moe Points | Tsundere | 
Mikoto Misaka(Japanese:
| Info from the library of Academy City | 
| Confidential | 
| Category of Info | Esper | 
| Ability | Electro Master | 
| Level | LV5 | 
| Skills | Lightning Strike | 
| Skills | Railgun | 
| Category of Info | Student | 
| School | Tokiwadai Middle School in District 7 | 
| Grade | 2 | 
| Live in | No 208, Student Dorm,Tokiwadai Middle School, District 7 | 
| Category of Info | Projects | 
| Radio Noise | Origin | 
| Level 6 Shift | Origin | 
| Second Level 6 Shift | Origin | 
Mikoto Misaka is one of the main heroines in A Certain Magical Index, and the main protagonist of A Certain Scientific Railgun. She is also called Railgun(
She is the third ranked Level 5 esper in Academy City, also the strongest Electromaster, she has been called "the Super Railgun of Tokiwadai","Tokiwadai's Ace","the Strongest Electromaster" and "Electric Princess". Toma Kamijo coined the nickname Biri-Biri (ビリビリ)(a.k.a, "Sparky" or "Bug Zapper"), whenever they meet, Toma calls her Biri-Biri, even after his amnesia. She is also called One-sama(お姉様) by Kuroko Shirai and the Misaka Sisters.
She is aggressive and has strong sense of justice, with a character which is like a boy. She has less patience and extremely tsundere though, especially when seeing qute things.
Mikoto is the daughter of Tabigake Misaka and Misuzu Misaka. At a young age, she was discovered to be a Level 1 Electromaster (
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