Family name Lumson (Lumson 
) , across the world, is a very rare cognomen. The surname Lumson is habitual in Thailand, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United States. Likewise, Lumson is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lumson | Spain, India, United States, Thailand, South Africa |