Mario Tamagno
| Mario Tamagno | |
|---|---|
| Born | 19 June 1877 Turin, Italy | 
| Died | 1941 (aged 63–64) | 
| Alma mater | Accademia Albertina di Belle Arti | 
| Occupation | Architect | 
| Practice | Government of Siam | 
| Buildings | Ananta Samakhom Throne Hall (1908–15; collaboration) Hua Lamphong Railway Station (1907) | 
Mario Tamagno (19 June 1877 – 1941) was an Italian architect who worked mainly in early 20th-century Siam (modern-day Thailand).