Yes, Michonne's sword in "The Walking Dead" is a katana. The katana is a traditionally Japanese sword with a curved, single-edged blade, circular or squared guard, and long grip to accommodate two hands. It's recognized for its sharpness and strength. Michonne, portrayed by Danai Gurira, uses this weapon proficiently throughout the series to protect herself and her group from zombies, known as "walkers" in the show.