In Naruto, during the episode with Sakura and Ino's batle during the preliminaries of the Chuunin exams, during one of the flahsbacks there was a girl named Aya who picked on Sakura.
There is a beautiful song by blues-garage band Black Rebel Motorcycle Club (BRMC) called Aya.
Also, in the House of Night books, the main character's Native American heritage is often cited and she is sometimes referred to as A-ya, which means (if I remember correctly) "Me" in the language of the tribe she's from.