Della Duck (sometimes named Dumbella Duck) is a cartoon character created in 1937 by Al Taliaferro and Ted Osborne. She is a core member of the Disney Duck family, as the niece of Scrooge McDuck, the younger twin sister of Donald Duck and the mother of his nephews Huey, Dewey, and Louie. Della is an anthropomorphic white duck with a yellow-orange bill, legs, and feet.

She is one of the main characters in the DuckTales reboot, where she typically wears an aviator hat, bomber jacket with a light blue scarf and brown pants. As an adult, being an amputee, she also has a robot leg. She is known for her boisterous and adventurous spirit as a female adventurer, and has been deemed a positive role model to other women and to people with disabilities.