List of Klingon blade weapons.
Named
Non-Klingon
Klingons also kept the Jem'Hadar polearm, called a Kar'takin, aboard their ships for training purposes during the Dominion War.
Unnamed
Klingon chancellor's knife
This knife was used by the Klingon chancellor to threaten Captain Jonathan Archer when he visited Qo'noS in April 2151. (ENT: "Broken Bow")
Hegh'bat ceremony knife
This knife is used in the Hegh'bat ceremony. Worf tried to kill himself with this knife in 2367 (TNG: "Night Terrors") and nearly talked his son Alexander into killing him with such a knife when Worf was unable to move. (TNG: "Ethics") The Knife of Kirom is a similar-looking knife. (TNG: "Rightful Heir")
House of Duras knife
A knife carried by members of the House of Duras. (TNG: "Firstborn")
Klingon food knife
Koloth used this small Klingon knife to cut a piece of cake in half. (DS9: "Blood Oath") When Kurn came aboard Deep Space 9 in 2372, he wielded a similar knife. (DS9: "Sons of Mogh")
Klingon large knife
When going through the Kal'Hyah ritual, Worf held this knife. (DS9: "You Are Cordially Invited")