Mackenzie Astin
- Name: Mackenzie Alexander Astin
- Birthdate: May 12, 1973
- Birthplace: Los Angeles, California
- Parents: Anna Marie "Patty" Duke and Michael Pearce and John Astin and Valerie Ann Sandobal
- Siblings: Sean Patrick Astin (b. 2/25/71), Sister-In-Law Christine Astin (b. 1970), Half-Brothers; David, Allen J. (b. 3/23/61), Thomas E. (b. 3/19/65), and Kevin Michael Pearce
Last updated 5-25-08