John Carter may refer to:

• John Carter of Mars, a fictional character from the fiction of Edgar Rice Burroughs.
• John Brown Carter
• Zebadiah J. Carter
• John Carter, a New Zealand politician.
• John Carter, a U.S. Representative from Texas
• John Carter, a jazz musician
• John Carter , a rock musician
• John Carter, a fictional character from the television series ER.
• John Carter, a fictional character from the television series Little House on the Prairie played by Stan Ivar .