Across the world, Leason (Leason 
) is a very rare principally masculine, but very seldom female forename. The forename Leason is characteristic of the United States, where it is an extremely rare primarily masculine, but very infrequently girly name, China, where it is an extremely rare boy's name, and India, where it is an extremely rare epicene name. More frequently, Leason is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Leason | United Kingdom, United States, China, Tanzania, Canada |