The mek'leth is a single-handed Klingon blade, shorter than a bat'leth but longer than a dagger, favored in close combat.
Alongside the bat'leth and the d'k tahg, the mek'leth completes the familiar trio of Klingon bladed weapons. It is designed to be used in one hand, often with a dagger in the other, and suits the cramped corridors of a ship or a crowded melee.
Worf, Martok and other Klingon warriors carried mek'leths during the Dominion War, when Klingon boarding parties and soldiers frequently fought hand to hand with Jem'Hadar troops.