Issy can also be used as a diminutive of Isaac, Israel, Ishmael, Isidora/Isadora, Isabel, Isabelle, Isabela, or other names beginning with a similar sound.
My nickname is Issy and I honestly think it's an okay name. Sure, it's weird, but I really like it. I pronounce it Izzy, but I spell it like Issy. It is a cute name or nickname for a girl and is definitely unique.
I want to say Ihss-ee so bad, and this spelling is worse then Izzy. I personally prefer Izie for a girl, even though it looks weird.
― Anonymous User 12/21/2017
-2
There is a novel called A Song for Issy Bradley by Carys Bray, where Issy is short for Isabel.
― Anonymous User 7/29/2014
1
Can also be a nickname for names with the 'iss' sound in them like Melissa, Marissa, Alissa, Clarissa, etc.
― Anonymous User 6/30/2013
5
I babysit a little girl named Isabelle, nickname Issy. I never really used to like the nickname, it's grown on me and it suits her. I do, however, prefer Izzie and Izzy over Issy.