Alex can refer to:
- Alex, the default female character of Minecraft.
- Alex, a character from Ninja Scripts.
- Alex (SSS): A self-insert of User:Alexs23743 who appears in Super Smash Stadium as a fighter.
- Alex, a character from the Tekken series.
- Alex Kidd: Sega's original mascot.
- Alexandria Earhart, the character introduced in Fantendo Now.
- Alex Ember Koopa, an electrokinetic Koopaling.
- Alex Kennasaw, the main protagonist of Street Hero X.
- Alexandra Roivas, the main protagonist of Eternal Darkness: Sanity's Requiem.
- Alex (Street Fighter), the main protagonist of the Street Fighter III games and a major character in the franchise.