Family name เบญจมบพิตร (Benchamast 
, เบญจมบพิตร , Benmahamadsadid ) , worldwide, is an extremely rare surname. The surname เบญจมบพิตร is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, เบญจมบพิตร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Benchamast | United States, Thailand |
| Benmahamadsadid, เบญจมบพิตร | Thailand |