Dektenb was a continent on the planet Romulus.

It was noted as being a unstable region on the Romulan home world with tectonic plates that shifted against one another leading to the molten interior of the planet seeking the weak points in the crust. The flareups were frequent and immense with plumes of flame shooting miles into the sky and fires along with lava flows that glowed red as well as orange in serpentine patterns. This was a contributing factor to the wondrous Firefalls of Gal'Gathong.

As such, Dektenb was known as being unpredictable and volatile when compared to its neighbouring continent of Masfarik. (TNG novel: Unification)

the planet Romulus
cities and settlements	Avra Trel • Bareldak Trel • Calanista • Caranam • Ch'eren • Chaladra • Dinalla • Dorvek • D'Sivas • East Umrika • Gavros Trel • Hlarek • Ihhlaie • I'Ramnau • Kanassarum • Kar'Mael • Ki Baratan (Government Quarter) • Kromtal Trel • Leinarrh • M'Narth • Portora • Rateg • Ra'tleihfi • Rhehiv'je • Tal K'shir • Tephren • Torven • Vela'Setora • Villera'trel
landmarks and institutions	Aekhhwi'rhoi • Arena of Life • Astrophysical Academy • Avenue of Processions • Boulevard of Heroes • Citadel Var'Theldun • Colleges of the Great Art • Hall of Columns • Hall of State • Imperial Academy of Arts • Imperial Palace • Square of Heroes • Plaza of the Endless Sky • Victory Square • Vikr'l Prison
nations and provinces	Elheu District • Kihai * Tikal
geography	Allerash Mountains • Ar'hael Desert • Beld'Rath Peninsula • Cave of Winds • Firefalls of Gal'Gathong • H'aareld va Groth'Chok • Hallows • Jeweled Forest of Ath'reshaar • Kae'raktar Mountains • Kor Thon • Landrosh Mountains • Plains of Aihai • Raas'trek Mountains • Sen'lanark Mountains • T'aresh Mountains • Valley of Chula • Valley of Fire • Wall of Fire Mountains
continents and landmasses	Brel'Kar • Dektenb • Ehrie'fvil • Masfarik • Novok • Umrika • Sath'har Archipelago • Uulma Islands • Umrika • Valkarja
bodies of water	Apnex Sea • Balsanra River • Bareldak Bay • D'Gansar River • Dorvek River • Garenah Sea • Gend'eroth River • Haverelar Sea • H'relgath River • Jendraax Strait • Sea of Lerodan • Nelrek Ocean • North Mendlanar Sea • Sherdak Sea • South Mendlanar Sea • Tai'eld River • Terelex Straits • Thal'Tharin River • Tor'ren River • Sea of Vrekess • White Sea