Lieutenant
Lieutenant is used in the names and ranks of different races. Lieutenant is also a creature classification (like rare, elite, or boss) in a dungeon or raid that indicates a more-difficult enemy that doesn't rise to the level of a boss, previously and informally referred to as a mini-boss.
In World of Warcraft, there are some characters with Lieutenant in their name. Lieutenant can also mean a subordinate of a leader, even if they have no official rank or have a higher rank, as was the case with Uther the Lightbringer, Admiral Daelin Proudmoore, and Turalyon being the lieutenants of Anduin Lothar during the Second War.
In Warcraft: Orcs & Humans and Warcraft II: Tides of Darkness, it is a rank players can achieve in PvP match-ups. Alliance characters can achieve the Knight-Lieutenant and Lieutenant Commander titles in rated battlegrounds.
Known
Named
Lieutenant Aden
Lieutenant Amadi
Lieutenant Beitha
Lieutenant Benedict
Lieutenant Caldwell
Lieutenant Dagel
Lieutenant Dawnrunner
Lieutenant Doren
Lieutenant Drake
Lieutenant Fairweather
Lieutenant Fangore (promoted to General after the Cataclysm)
Lieutenant Farren Orinelle
Lieutenant Gravelhammer
Lieutenant Haggerdin
Lieutenant Jackspring
Lieutenant Jocryn Heldric
Lieutenant Karter
Lieutenant Khand
Lieutenant Lisande
Lieutenant Meridian
Lieutenant Nath
Lieutenant Nevell
Lieutenant Orrin
Lieutenant Rachel Vaccar
Lieutenant Rotimer
Lieutenant Rukag
Lieutenant Sanders
Lieutenant Sinclari
Lieutenant Tomathren
Lieutenant Tristia
Lieutenant Valorcall
Lieutenant Desdel Stareye
Lieutenant Silvermight