Klingon Defense Force Command Headquarters was a structure that housed Klingon Defense Force Command, the central authority of the Klingon Defense Force. It was located in the First City on Qo'noS in a plaza overlooking the Qam-Chee River, approximately one half qelI'qam from the Great Hall. One of its key features was its qaDrav, a platform at the center of the plaza where challenges were traditionally issued and fought.

The surviving captains of the mission to the Kavrot sector gathered at Command Headquarters in late 2376 to brief General Kriz and receive new orders. Shortly afterwards, Captain Klag was brought to the Command Headquarters qa'Drav to face a challenge by Kurn, son of Mogh (known to Klag as Rodek). (KE novel: A Burning House)

the planet Qo'noS
cities and settlements	An'quat • D'Takka • Emperor Kahless Military City • First City (Old Quarter) • Khal • Khinah • Kopf's Cliff • Krennla (Baldi'maj District • Kenta District) • Kri'stak City • M'riiah • Navarath • NarOs • Novat • Qam-Chee • Qa'yarin • Quin'lat • Saqwa' • Serra'nob • Szlar'it • T'chariv • Tisur • Tolar'tu • Tong Vey • Ya'Koraq
landmarks and institutions	Combat Testing Center • Du'Hurgh • Federation Embassy on Qo'noS • Flame Cliffs of Kutabi • Goqlath Castle • Great Domes of Qo'noS • Great Hall • Hall of Heroes • Hall of Honor • Kilgore Landing Bay • Klingon Defense Force Command Headquarters • Lukara Edifice • Museum of Military Triumph and Conquest • Palace of Kahless • Place of Honor • Tactical College • Taklar Temple • Temple of Molgar • Temple of Rogax • TengchaH Jav • Three Turn Bridge • TlhIng Veng laboratory • Vulcan Cuisine
nations and provinces	Ketha • Khlaru • Mekro'vak
geography	Almron Preserve • BIng'av Mountains • Caves of Kahless • Caves of No'Mat • Chak'ok • Cybriss Valley • DuHoH Desert • Fesh'rin Hills • Kutabi • Gharhuil • Hamar Mountains • HatlhHurgh • Jungles of Kintak • Kang's Summit • Kannaga Mountains • Karak Summit • Kartade Forest • Ka'Toth plains • Ketha Lowlands • Kol'Vat • Kri'stak volcano • Mount Batlhqui • Mount Vor • Nagh Be'nImey • Ona'ja'bur • Qimpo • Qo'dung Mountains • Qora Forest • Qualnagh Mountains • Shrana • Sutor Mountains • S'zlach • Tiv'ranisch • Tl'Gekh • TlhIngtuj Mountains • Tor'aq • Uhq'ra' Mountains
bodies of water	BIQ'a'bIng Ocean • BIQ'a'dung Ocean • Chu'paq Sea • Sea of Gatan • HoSghaj River • Lake Lursor • Lake Lusor • NIHbIQ'a' Ocean • PoSbIQ'a' Ocean • Qam-Chee River • Skral River