In all the world, Birtwhistle (Birtwhistle 
) is an extremely rare unknown gender given name. Much more frequently, Birtwhistle is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Birtwhistle | Canada, Australia, United States, United Kingdom, South Africa |
| harrison birtwhistle British composer, GB (b. 1934) |
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| allen birtwhistle |
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