What is "izzy"

Izzy is a common nickname for the given names Israel, Elizabeth, Isaac, Isambard, Isidore, Isabelle, Isabella, Isaiah, Izzet, Isarn, Ismail, Izebel, Izmara, or Isam (عصام).

It may refer to:

Izzy was the official mascot of the Atlanta 1996 Summer Olympics. Named Whatizit (What is it?) at its first introduction at the close of the 1992 Summer Olympics in Barcelona, the animated character with the ability to morph into different forms was a departure from the Olympic tradition in that it did not represent a nationally-significant animal or human figure.