Ansem (disambiguation)

Ansem may refer to:
 * Xehanort's Heartless, the main antagonist from Kingdom Hearts, or Xehanort's Heartless (Enemy), his boss fight.
 * Xehanort after he took Ansem the Wise's identity and banished him.
 * Xemnas who was mistakenly believed to be Xehanort's Heartless for part of Kingdom Hearts II.
 * Riku while he had the appearance of Xehanort's Heartless for most of Kingdom Hearts II.