Madden is an Irish surname meaning "descendant of Madán," from the Old Irish mathghamain meaning "bear." In American pet naming it arrives primarily as a sports-culture reference — the Madden NFL franchise has been part of American sports gaming since 1988, making it a generational touchstone for millennial dog owners who grew up arguing over Madden ratings.
Sports Gaming Lineage
John Madden, the Hall of Fame coach and NFL broadcaster, lent his name to the most successful sports video game franchise in history. For a generation of American men who spent Sunday afternoons deep in franchise mode, naming a dog Madden is a low-key tribute that lands differently than naming it Brady or Manning. American bulldogs and rottweilers fit the sturdy, no-nonsense register.
Human-Name Crossover
Madden has been growing as a human given name — it ranked in the top 500 boys' names in SSA data through the 2010s. The human name Madden and the pet name draw on the same surname-as-given-name trend that made surnames like Mason, Hunter, and Carson dominant in American naming.
The Counter-Reading: Surname Energy
Madden reads more like a last name than a first, which can feel slightly formal on a pet. Owners who want the sound without the formality often land on Maddox instead.