Dizzy is a unique and uncommon first name of American origin, deriving from the surname 'Dizzie', which was brought over by English settlers to the United States. The name Dizzy is believed to have been adopted for use as a given name sometime during the 20th century.
"Dizzy as a popular baby name peaked in 1935 with eight births, then declined to six in 1936 and five in 1937, with a total of nineteen children named Dizzy born over those three years."