In Kingdom Hearts: Chain of Memories, what is the name of the replica of Riku?

In Kingdom Hearts: Chain of Memories, the replica of Riku is called Riku Replica. The character is artificially created by Vexen, a member of Organization XIII, using data and memories connected to the real Riku.

Riku Replica initially believes he is the genuine Riku, making his existence part of the game’s larger focus on memory, identity, and manufactured selves. As the story develops, he learns that he is a copy and becomes increasingly desperate to prove that he deserves to exist. This drives his conflict with the original Riku during the Reverse/Rebirth storyline.

Naminé is a witch who can manipulate memories, while Roxas and Xion are separate characters connected to Sora and the Organization. Riku Replica is therefore not merely a nickname for Riku but the canonical name used for the replica character. The replica later appears in the broader Kingdom Hearts story under related naming conventions.