Agent 13

Agent 13 may refer to:


 * Agent 13: The Midnight Avenger, a spy fiction series published by TSR from 1986 to 1988, and the name of the main character
 * Agent 13: The Invisible Empire (1986), the first book in the series
 * Agent 13: The Serpentine Assassin (1986), the second book in the series
 * Fury/Agent 13 (1998), a comic book miniseries published by Marvel Comics
 * Agent 13 (comics) or Sharon Carter, a character in the series
 * Agent 13 (Marvel Cinematic Universe), an adaptation of the character
 * Agent 13, a supporting character in the spy parody TV series Get Smart
 * Agent K-13/Fang, a poorly trained CONTROL dog in the 1960s television series Get Smart