What is the name of the mouse who is Mickey's rival for Minnie's affection?

What is the name of the mouse who is Mickey’s rival for Minnie’s affection? The answer is Mortimer Mouse.

Mortimer first appeared as Mickey’s romantic rival in the 1936 animated short “Mickey’s Rival.” In that story, he returns to town, boasts about his sophistication, and tries to win Minnie away from Mickey. His polished confidence contrasts with Mickey’s more familiar, sometimes jealous personality.

The name can cause confusion because Disney stories also feature an Uncle Mortimer, a separate character identified as one of Minnie’s relatives in some comic continuities. The question’s reference to Minnie’s affection clearly points to the rival, not that family member.

There is also a behind-the-scenes connection: Walt Disney initially considered “Mortimer” as a name for Mickey Mouse. Lillian Disney reportedly suggested “Mickey” instead, a choice that became one of animation’s most recognizable names.