Maclay is a girl name. It last appeared in U.S. Social Security records in 1999. Maclay first appears in the data in 1998 and reached its peak in 1999 (6 births). The chart below shows how the name has risen and fallen over time.
How popular is Maclay? (U.S. births per year)
U.S. births per year, 1998–1999 · hover or tap for the count and national rank · source: U.S. Social Security Administration