"Ed Crosswire's niece" is not an official name.
Ed Crosswire's niece
Gender Female
Animal Monkey
Hair color Dark brown
Complexion Brown
Family Ed Crosswire's niece's husband (husband)
Ed Crosswire (uncle)
Millicent Crosswire (aunt)
Muffy Crosswire (cousin)
Chip Crosswire (cousin)
Cartoon debut The Secret Life of Dogs and Babies

Ed Crossswire's niece appears in "The Secret Life of Dogs and Babies" at her and her husband's wedding reception. David Read made their wedding cake and a wedding topper that looked identical to them.