Kourtney is a spelling variant of Courtney, from a French surname and place-name meaning domain of Curtenus or short nose by folk explanation.
Kourtney is a phonetic variant of Courtney, a name with aristocratic Norman French origins. It derives from the place name Courtenay in the Loiret region of France, which was in turn adapted from the Latin personal name Curtus — meaning "short" — combined with the Gaulish suffix that marked estate ownership. The Courtenay family were powerful Norman lords who accompanied William the Conqueror to England in 1066 and became one of the most prominent noble dynasties of medieval England, eventually claiming descent from French royalty.
As a surname-turned-given-name, Courtney carried this aristocratic freight for centuries before transitioning into common first-name use. For much of the twentieth century, Courtney was used primarily as a masculine given name — a pattern common to many English surname-names — before shifting decisively to feminine use in the United States from the 1970s onward. By the 1980s and 1990s, Courtney had become firmly established in the top female names, associated with a confident, sociable, and upwardly mobile American femininity.
The name received rock-and-roll credibility through Courtney Love, the musician and cultural provocateur whose presence in the early 1990s alternative scene gave the name a sharp, rebellious edge alongside its more conventional associations. The Kourtney spelling, which replaces the traditional "C" with a "K" and adjusts the vowel in the suffix, became widely recognized through Kourtney Kardashian, whose long-running public profile through the 2000s and 2010s made this orthographic variant the version many people encounter first. The "K" opening gives the name a more energetic visual signature and marked a broader cultural moment when parents sought to personalize familiar names through creative spelling. Kourtney today reads as confident, self-assured, and fashionably aware of its own heritage.