Light, bright, or moon halo
Ailyn is a modern phonetic variant of Eileen or Aileen, which are Irish forms of Helen. It carries the etymological weight of 'light' or 'bright' from its Greek roots, while also being associated with the Turkish name Aylin, meaning 'moon halo'.
Less common today
Ailyn isn't in the latest US Top 1000. It last peaked at #1,047 in 2012.
US births per 5-year period, 1990โpresent (SSA data).
American operatic soprano
Spanish singer and former vocalist for the band Sirenia