Alex is a fictional character, the narrator and antihero of Anthony Burgess' novel A Clockwork Orange and the movie adaptation, in which he is played by Malcolm Mc Dowell.

Alex is the main character of the Street Fighter III series.

Alex is a character in the Tekken fighting game series.

Alex is a fictional character, a mutant in the Marvel Comics Universe. His/her first appearance was in Ghost Rider (third series) #8.

Alexander (Alex for short) is a fictional character who appears in the 2005 Dream Works film, Madagascar. He is voiced by Ben Stiller.