Quillan is a unique and distinctive given name of Irish origin, derived from the ancient Irish name CúChulainn. This legendary figure was a mythical hero known for his extraordinary strength, bravery, and skill in battle. The name Quillan is believed to have been used as a shortened form or variant of CúChulainn. It is not among the more commonly encountered names today, which contributes to its allure and individuality.
The name Quillan has seen fluctuations in popularity over the past four decades, with peaks occurring in the late '90s and again in the mid-2010s. The most popular years for the name were 1994 with 15 births and 2018 with 17 births. Conversely, there were periods of decreased popularity, such as between 2006 and 2009 when the number of births ranged from 5 to 7 annually.