The name Eileen is a girl's name of Gaelic, Scottish, Scotch-Irish origin meaning "bright, shining one". Eileen is ranked #725 on our popularity charts and is often added to lists like Irish Baby Names for Girls and discussed in our forums with posts like "Baby a Day".
From the experts:
Eileen was a surprise riser in the name ranks in 2015, and was Number 725 in 2016. Irish Aileen continues to be more popular than Scottish Eileen, though both names have seen an unexpected resurgence since 2012. Nicknames for Eileen include Isla, Lee and Lina. Eileen is an Anglicized form of the Gaelic Eibhlin or Aibhilin. It was quite popular in the early part of the twentieth century.