Kat Stewart
- Title: Kat Stewart
- Popularity: 3.83
- Known For: Acting
- Birthday: 1972-11-30
- Place of Birth: Bairnsdale, Victoria, Australia
- Homepage: https://lmcm.com.au/artists/kat-stewart/
- Also Known As: Κάθριν Λουίζ Στιούαρτ, Κατ Στιούαρτ, Αικατερίνη Λουίζ Στιούαρτ