The French poodle that Snoopy dances with is named Fifi.
Fifi is presented as Snoopy’s glamorous love interest and a fellow performer in the circus-themed television special Life Is a Circus, Charlie Brown. Snoopy becomes captivated by her and joins the act, giving their relationship a playful, theatrical setting rather than the neighborhood backdrop of most Peanuts stories.
Fifi later appeared in The Peanuts Movie, where she is reimagined as a daring poodle pilot connected to Snoopy’s World War I Flying Ace fantasies. That film introduced her to a new generation and made her more recognizable outside the earlier television special.
Beethoven is associated with Schroeder’s musical devotion, Spike is one of Snoopy’s brothers, and Woodstock is Snoopy’s bird friend. None is the poodle in this story. Fifi’s appearances are comparatively limited, which is why her name can be harder to recall than those of Peanuts’ regular characters.