Irish Girl Names That Mean Rock

Most lists like this scatter names from a dozen unrelated languages. This one doesn't — nearly every name here traces back to the same source, Alan, an Irish name element carrying both 'rock' and 'harmony.' What varies is spelling and sound, not root.

So you'll find the familiar Alanna sitting beside quieter cousins like Alahna and Alonna — same bones, different dress. Carrigan breaks the pattern entirely, arriving as a surname built straight from the Irish word for rock.

Why so many Irish girl names that mean rock share one root

Look closely and you'll notice Alanna, Alanah, Allana, Alonna, Alanie, Alahna, Alaynah, and Allena are really one name spelled eight ways. Irish naming tradition often layers 'little rock' with a second, softer sense — 'harmony' or the endearment 'dear child' — so the same name can read as sturdy or affectionate depending on which meaning a parent leans into.

The names that stand apart from the Alan family

Lana carries the rock meaning too, but shares it across Hawaiian and Slavic tradition rather than Irish alone, which is why it feels more international than its cousins. Lanna reads as a pet form of both Lana and Alana. Carrigan is the outlier worth noting — an actual Irish surname meaning 'little rock' or 'little spear,' unisex in origin, now finding its way to girls.