Dinah the Dachshund is one of Pluto's love interests. Like her boyfriend, and Figaro she is not anthropomorphic and behaves like a "normal" animal.
Dinah first appeared in the short The Sleepwalker, in which she replaced Fifi as Pluto's girlfriend. She has since appeared in various shorts, and also in the television series Mickey Mouse Works, and House of Mouse. Although she is not used often today Dinah still continues to make minor appearances in Mickey and Friends products, such as Pluto comics.
The only time that Dinah and Fifi appeared together.