Seith
A boy's name of Welsh origin with 125 recorded U.S. births.
Meaning & Origin
Among U.S. boy's names, Seith is not in the current national top 1,000. In fact, it is among the rarest names in the SSA dataset — a choice that signals bold individuality.
With records spanning 1978 to 2005, Seith has a focused history that reflects a particular moment in naming culture rather than a centuries-old tradition.
Seith is not in the current top 1,000 boy names nationally, making it an uncommon choice — though your state or community may differ.
Seith is a boy's baby name of Welsh origin, from the Welsh word saith meaning 'seven' — making it a number name in the Welsh language. Numerological names have a tradition in various cultures, and seven has been considered lucky or magical across most world cultures.
As a given name, Seith is rare but carries the quiet mysticism of the number seven — the days of the week, the colors of the rainbow, the notes of the musical scale. In Welsh naming tradition, it offers a unique connection to the Celtic language and its ancient numerical mysticism.
EtymologyShow more
Names travel. They cross oceans, change spelling, shift pronunciation, and accumulate new associations with each culture that adopts them. Seith is rooted in the Welsh tradition, but its presence in American naming since 1978 means it has been shaped by English phonetics, local customs, and the cultural context of the families who chose it.
Seith’s rarity (125 recorded births) may indicate it is strongly tied to a specific cultural community or family tradition, rather than part of the broader American naming mainstream.
At a Glance
Popularity Over Time
Seith has 18+ years of history in the U.S., first appearing in 1978.
Popularity by Decade
| Decade | Births | Avg Rank | Trend |
|---|---|---|---|
| 2000s | 31 | #10487 | ▼ |
| 1990s | 44 | #7821 | ▲ |
| 1980s | 36 | #6056 | ▲ |
| 1970s | 14 | #5216 | — |
The Story of Seith
A Gen Z name
Peaking in 1999, Seith is a name that defines a generation. Boys named Seith are most likely born between 1989 and 2005.
How rare is Seith?
With fewer than 500 recorded births, Seith is an exceptionally rare name — a one-of-a-kind choice.
The journey through the decades
First appeared in the records in 1978, peaked in the 1990s with 44 births that decade, and remains solidly popular today.
Seith by the numbers
- Would fill 3 school buses
Year-by-Year Data
View complete yearly data(18 years, 1978–2005)
| Year | Births | Rank |
|---|---|---|
| 2005 | 5 | #13027 |
| 2003 | 6 | #10654 |
| 2002 | 6 | #10443 |
| 2001 | 8 | #8181 |
| 2000 | 6 | #10129 |
| 1999 | 12 | #5595 |
| 1997 | 6 | #9077 |
| 1996 | 6 | #8834 |
| 1995 | 7 | #7661 |
| 1993 | 7 | #7475 |
| 1992 | 6 | #8281 |
| 1989 | 9 | #5524 |
| 1988 | 8 | #5658 |
| 1987 | 8 | #5374 |
| 1986 | 5 | #7636 |
| 1983 | 6 | #6090 |
| 1979 | 8 | #4783 |
| 1978 | 6 | #5648 |
Source: U.S. Social Security Administration. Showing years with 5+ recorded births.
Frequently Asked Questions
Is Seith a boy's or girl's name?
When was Seith most popular?
How popular is the name Seith?
Explore More
Data source: U.S. Social Security Administration, 1978–2005