Batman: Batgirl is a one-shot published in 1997. It was published on May 21, 1997.
This issue was released as one of four one-shot graphic novels to coincide with the release of the 1997 Batman and Robin movie. The covers to all four issues interlock to form one composite image in the order (from left to right): Batman: Bane, this issue, Batman: Mr. Freeze and Batman: Poison Ivy.