How Many People Are Named Llewellyn?
people named Llewellyn are alive in the United States today (estimate)
About 1 in 226,347 people in the US has this name
Based on 3,755 babies named Llewellyn in Social Security records from 1880 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
79 births
Trend
Stable (last 10 years)
📖 Name Origin & Meaning
Meaning:
Variant of LLEWELYN.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
⚧ Gender Distribution
Of the babies given the name Llewellyn, 7.8% were girls and 92.2% were boys. The share of girls among babies named Llewellyn rose from 12.6% in the 1910s to 38.5% in the 2020s. It was lowest in the 1960s, 1970s and 1980s, at 0%.
👥 Age Distribution
The average person named Llewellyn alive today is about 53 years old, and 49% are 60 or older. Half of them were between 39 and 71 in 2025.
📈 Popularity Over Time
Llewellyn first appears in the records in 1880 and was given most often in 1918, to 79 babies. In 2025, 27 babies got the name.
Babies given the name each year, 1880 to 2025
🏆 Rank History
Llewellyn has never been one of the 100 most popular boys' names. Its best rank was #594, in 1882. In 2025 it ranked #5,747.
| Boys | |
|---|---|
| Rank in 2025 | #5,747 |
| Best rank | #594 (1882) |
| Years in the top 100 | None |
| Rank in its biggest decade | #914 in the 1920s |
📍 State-Wise Distribution
People named Llewellyn alive today, by the state where they were born (estimate; state records start in 1910).
More people named Llewellyn were born in Pennsylvania than in any other state: about 32 of those alive today. Compared with the national rate in the same years, Llewellyn was given 17.8 times as often in Maine, 5.6 times in Pennsylvania and 1.9 times in New York.
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