Venator
This is the singular masculine nominative form of the Latin word "venator," meaning "hunter."
However, you could also use:
* Venatrix (feminine singular)
* Venatores (masculine plural)
* Venatrices (feminine plural)
You could also use a phrase like:
* Is, qui venatur (literally "He who hunts")
The choice depends on the context and what you want to emphasize.