American informal name originally a term of address for a young man or brother.
Bud occupies a fascinating corner of American naming history — a nickname so thoroughly naturalized that it became a given name in its own right. The word derives from *buddy*, itself a childish reduplication of *brother* (brother → bud → buddy), which emerged in American English during the early nineteenth century as an affectionate term for a close male companion. Parents began registering it as a legal given name in the late 1800s, a period when American naming culture enthusiastically embraced informal, democratic-feeling names that pushed back against European formality.
The name's mid-century carriers defined its personality: Bud Abbott of Abbott and Costello brought it comedic timing and working-class New York energy; Bud Powell was one of the architects of bebop piano, transforming it into something intellectually formidable; Bud Selig served as Commissioner of Major League Baseball for more than two decades. C. Baxter but called Bud throughout, and the character of Bud Bundy on *Married...
with Children* kept it in the American domestic comedy landscape into the 1990s. Bud has the compressed, immediate quality of certain midcentury American names that now feel both retro and forward-leaning. Unlike many vintage names that were always formal, Bud was never trying to be impressive — which is precisely what makes it charming. It promises friendship before it promises anything else, and that etymology, traced back to *brother*, has never really left it.