Kacey is an anglicized variant of the Irish Cathasaigh ("vigilant in war") — also linked to the K-spelled diminutive of Katherine. Kacey Musgraves (born 1988) — American country singer-songwriter; 2019 Grammy Album of the Year for Golden Hour (2018) — only the third country album in the 21st century to win the all-genre top prize. Six Grammy Awards total including Best Country Album twice (2014, 2019). Her songwriting on "Follow Your Arrow" (2013) made her a vocal LGBTQ+ ally in mainstream country music when that was still rare. Country Music Association Album of the Year (2018, 2024). Star-Crossed Tour (2022) crossed $1M per show. A top-1000 US baby name since 2014. Casey at the Bat (1888)** — the canonical American baseball poem.
Subject of countless music industry profiles.
Kacey does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Kacey reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.