Meaning and name origin
Aislyn \a(i)-sl-yn, ais-lyn\ as a girl's name is of Irish and Gaelic origin, and the meaning of Aislyn is "dream, vision". Aislyn is a variant of Aislinn (Irish, Gaelic): not in use as a given name during the Middle Ages, but was adopted as part of the Irish revival in the 20th century.
Aislyn is not a popular first name for females and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the girl name Aislyn and its variant forms. The only popular variation form ranked in the Top 1000/100 is Aislinn. (2014 statistics).