Family name เหล็ด (Let 
, เหล็ด 
) , around the world, is a widespread last name. The last name เหล็ด is habitual in Mongolia, where it is a widespread surname, Myanmar, where it is quite a common surname, and India, where it is quite a rare surname. Very seldom, เหล็ด is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Let | Mongolia, China, Myanmar, Malaysia, India |
| เหล็ด | Thailand |