Kayce

Meaning & origin

Kayce is the rare name whose growth chart doubles as a television ratings curve. The spelling existed before Yellowstone, first recorded in 1989, drifting gently upward from 1995, but the arrival of Kayce Dutton, the show's conflicted rancher son, converted a rare variant of Casey into a fast riser. By 2025 it had reached 375th place, its best showing ever, given to about 1 in every 2,026 American babies.

The geography is almost on the nose: West Virginia, Montana, and Maine lead the country, and it is hard not to notice that the show is set on a Montana ranch. Kayce travels with the broader neo-Western naming wave, Rhett, Boone, Stetson, Oakley, that Yellowstone helped ignite.

What should give parents pause, and what makes the name interesting, is the same fact: it is a screen-driven spelling of a name that already exists. Casey is the established form with the Irish paper trail; Kayce buys distinctiveness and a dash of prestige-TV grit at the cost of lifelong "K-A-Y-C-E" spell-outs. Its genuinely unisex profile, increasingly uncommon among rising names, may prove its most durable trait.

Kayce is best described as a formation rather than a derivation: a phonetic respelling of Casey, which comes from the Irish surname Ó Cathasaigh ("descendant of Cathasach," a byname meaning "vigilant"), and in some families a spelled-out version of the initials K.C. The spelling first appears in Social Security records in 1989 and trickled along quietly, ticking upward from 1995. Its defining moment came in 2018, when the television series Yellowstone introduced Kayce Dutton, the rancher son played by Luke Grimes, and put this exact spelling in front of a very large audience; the name has climbed steeply since and reached its all-time high in 2025. Unusually for a current name, it is genuinely unisex in American use.