Lock
- US rank
- #12,008
- Syllables
- 1
- Peak
- #3,392 in 1915
5 babies were named Lock in the US in 2025.
Found on lists
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US births per million boys, 1915–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Lock you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- How commonAbout 1 in every 344,828 baby boys born in the US in 2025 was named Lock, 5 babies in all. In a typical school of 500 kids, your Lock would very likely be the only one.
- HistoryLock first shows up in US birth records in 1915, the first year at least 5 babies got it. It has been in use for 110 years since.
- Best yearIt was far more popular in 1915, when it ranked #3,392. Today it's #12,008, so it could be due a comeback.
About the name Lock
Lock is a boy name of English origin. It has 4 letters and 1 syllable, starting with L and ending in “-ock”. US birth records list Lock for boys from 1915 to 2025, in 4 of those 111 years. Its best year was 1915, when it ranked #3,392 among boy names. In 2025 it ranked #12,008, with 5 babies.
Origin:English names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1910s | 2.5 | 400,000 boys |
| 1920s | 0.5 | 2,222,222 boys |
| 2020s | 0.5 | 2,068,966 boys |
Other spellings of Lock
More English boy names
- Boy name: Oliver · olive tree
- Boy name: Henry · ruler of the home
- Unisex name: James · supplanter
- Boy name: William · resolute protector
- Boy name: Benjamin · son of the right hand
- Boy name: Jack · God is gracious
- Unisex name: Hudson · son of Hudde
- Unisex name: Julian · of the Julius family
Questions about the name Lock
What is the origin of the name Lock?
Lock has English roots in our records. Other English names include Oliver, Henry, James.
Is Lock a boy or girl name?
Lock is a boy name.
How popular is the name Lock?
Lock ranked #12,008 for US boys in 2025, given to 5 babies. Its best year was 1915 (#3,392).