Dizzy is a boy name. It last appeared in U.S. Social Security records in 1937. Dizzy first appears in the data in 1935 and reached its peak in 1935 (8 births). The chart below shows how the name has risen and fallen over time.
How popular is Dizzy? (U.S. births per year)
U.S. births per year, 1935–1937 · hover or tap for the count and national rank · source: U.S. Social Security Administration