Montagu House
Montagu House or Montague House may refer to:
- in England
- Montagu House, Bloomsbury, the first home of the British Museum, also known as Montague House
- Montagu House, Portman Square, built for Elizabeth Montagu on Portman Square
- Montagu House, Whitehall, another London mansion
- in the United States
- Henry Montague House, Kalamazoo, Michigan, listed on the National Register of Historic Places
- in Australia
- Monty House (Montague Grant House, born 1946), Western Australian politician