Cathedral of Saint Thomas may refer to:

• St. Thomas Syro-Malabar Cathedral, Kalyan
• St. Thomas Cathedral, Balharshah
• St. Thomas Cathedral Basilica, Chennai
• St. Thomas Cathedral, Pala
• St Thomas Cathedral & Bishop House, Irinjalakuda

• St. Thomas Cathedral, Mumbai

• St. Thomas Cathedral, Thottamon, Kerala

• St. Thomas' Cathedral, Vaddukoddai

• St. Thomas Cathedral, Ciudad Bolívar

• Mar Thoma Shleeha Cathedral (Bellwood, Illinois)
• St. Toma Syriac Catholic Cathedral, Farmington Hills, Michigan