Last name Courtnay (Courtnay 
) , throughout the world, is a rare family name. The last name Courtnay is habitual in Australia, where it is a rare surname, New Zealand, where it is a very rare surname, and the United States. In absolute terms, it is commonest in the United States, Australia, and the United Kingdom. More frequently, Courtnay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Courtnay | United Kingdom, South Africa, Australia, United States, Canada |
|
frank courtnay Australian politician, AU (b. 1903) |
|
| william henry courtnay (died 1807) |
|
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