Mok'bara is a ritual Klingon martial arts in Star Trek. It resembles a lot to Tai Chi. It was invented by Dan Curry, a martial arts and visual effects expert in Star Trek.

Worf taught Mok'bara on the Enterprise and also in the Romulan Prison camp in the Star Trek: The Next Generation episode, "Birthright".

It is designed to enhance one's agility in hand-to-hand combat.

- Star Trek Encyclopedia

Practitioners of the Mok'bara wear an outfit similar to kimono. In one episode, Tom Riker was paralleling the Mok'bara to Tai Chi.