Family name Shemwell (Shemwell 
) , in the world, is quite a rare last name. The cognomen Shemwell is habitual in Cayman Islands, where it is quite a rare surname, Israel, where it is a rare surname, and the United States. Measured by absolute frequency, it most frequently occurs in the United States, the United Kingdom, and Israel.
| VARIANT | COUNTRY |
|---|---|
| Shemwell | Israel, United Kingdom, United States, Australia, Canada |