Around the globe, Rennison (Rennison 
) is a very rare primarily male, but scarcely girly first name. The first name Rennison is habitual in Trinidad and Tobago, where it is quite a rare boy's name, Brazil, where it is a very rare masculine name, and the United States, where it is an extremely rare unisex name. More prevalently, Rennison is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rennison | Australia, United Kingdom, Canada, Lesotho, United States |
| graham rennison English association football player (born 1978), GB (b. 1978) |
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