Lock
Boy nameLock has been given to 21 babies in the U.S. since 1915. It peaked in 1915. In 2025, about 1 in 341,615 boys was named Lock.
Popularity over time births per year, 1880–2025
Total babies
21
Peak year
1915 (6 babies)
Rank in 2025
Below top 1000
First recorded
1915
10-year trend
New / returning
Gender split
All boys
Spellings & variants
Names one letter away from Lock — alternate spellings parents actually use.
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Lock.
Sibling name ideas for Lock
Same era and popularity as Lock, avoiding matching initials or rhymes.
FAQ
How popular is the name Lock?
Lock has been given to 21 babies in the U.S. since 1915. It ranked below the top 1000 in 2025.
When did the name Lock peak?
Lock peaked in 1915, when 6 babies were given the name.
Is Lock a girl or boy name?
Lock is primarily a boy name (100% of babies named Lock are boys).
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