What was Goofy's original character name?

Goofy's original character name was Dippy Dawg.

He made his debut in the 1932 animated short “Mickey's Revue” as an older, rougher character named Dippy Dawg. The early design included a beard and a more disheveled appearance, unlike the familiar friendly figure developed later.

Dippy Dawg appeared several times in 1932 and 1933. By “Orphan's Benefit,” released in 1934, Disney had begun calling him Goofy, the name that became standard in his theatrical shorts. The change accompanied a gradual redesign and a younger characterization.

A common mix-up is George G. Geef, a name Goofy used for ordinary suburban roles in many 1950s cartoons. Gilbert Goof is a relative, while “Goof” is part of names used in later continuities—not the character's original debut name.