Espy is a boy name. It last appeared in U.S. Social Security records in 1935. Espy first appears in the data in 1920 and reached its peak in 1922 (8 births). The chart below shows how the name has risen and fallen over time.
How popular is Espy? (U.S. births per year)
U.S. births per year, 1920–1935 · hover or tap for the count and national rank · source: U.S. Social Security Administration