Last name Clewis (Clewis 
) , throughout the world, is a rare surname. The cognomen Clewis is habitual in the United States, where it is a rare surname, Canada, where it is a very rare surname, and the United Kingdom. Much less frequently, Clewis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Clewis | United Kingdom, Canada, Brazil, India, United States |
| richard clewis American politician (1934-1992), US (b. 1934) |
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| robert r. clewis GB (b. 1977) |
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