Ace the Bat-Hound

Ace the Bat-Hound is a fictional superhero dog appearing in American comic books published by DC Comics. It is Batman and Robin's dog, a canine member of the Batman Family. He is a very good boy. He wears a mask to conceal his secret identity as Bruce Wayne's dog Ace. There have been several dogs named Ace, due their short lifespan. In the Prime Earth, another dog named Titus appeared as the second Bat-Hound before Ace was re-introduced.

Ace the Bat-Hound was created by Bill Finger and Lew Sayre Schwartz, first appearing in Batman #92 (1955).

The character made its cinematic debut in the animated movie DC League of Super-Pets, which was released in the United States on July 29, 2022.