Family name Cavanah (Cavanah 
) , all around the world, is a rare surname. The cognomen Cavanah is characteristic of the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and the United Kingdom. In absolute terms, it is the most numerous in the United States, the United Kingdom, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Cavanah | Canada, India, Australia, United States, United Kingdom |
|
charles cheatham cavanah United States federal judge, US (b. 1871) |
|
| robert cavanah British actor, GB (b. 1965) |
|