It depends on the art that they are studying. In most, adding the suffic -ka to the end means a person who studies that art, as in karateka, or judoka.
me
Professor Kano ( judo )
The Japanese consider Miyamoto Musashi to be the best martial artist in their history; although a swordsman, Musashi would have also known Jiu Jitsu.
Bruce Lee
a martial artist they can dodge and they are awesome
James Sinclair - martial artist - was born in 1960.
André Lima - martial artist - was born in 1966.
Ma Gui - martial artist - was born in 1851.
Ma Gui - martial artist - died in 1941.
Akshay Kumar is a martial artist, film actor, producer, and stunt actor.
Thomas Carroll - martial artist - died on 1999-03-20.
Thomas Carroll - martial artist - was born on 1938-02-07.