Lock is a boy name. In 2025 it ranked #24957 for boy births in the United States, given to 5 babies. Lock first appears in the data in 1915 and reached its peak in 1915 (6 births). The chart below shows how the name has risen and fallen over time.
How popular is Lock? (U.S. births per year)
U.S. births per year, 1915–2025 · hover or tap for the count and national rank · source: U.S. Social Security Administration