Rori is a feminine spelling of Rory, the anglicized form of the Irish Ruaidhrí, which means "red king" from ruadh, red, and rí, king. Once a boys' name in Ireland and Scotland, Rory crossed over to girls in the United States, and the i ending makes the feminine use explicit. Rori stood at number 4503 in 2000, reached number 1258 in 2022 and ranks number 1298 in 2025.