Family name Rilley (Rilley 
) , in all the world, is a rare surname. The last name Rilley is characteristic of Canada, where it is a very rare surname, the United Kingdom, and New Zealand. In absolute terms, it is the most numerous in the United States, the United Kingdom, and Canada. Also, Rilley is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rilley | United Kingdom, South Africa, United States, Canada, Brazil |
| john phillip rilley United States Navy Medal of Honor recipient (1877-1950), US (b. 1877) |
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