Seiji
- Gender
- Boy
- Origin
- Japanese
- US rank, 2025
- #8,906 for boys
Seiji is a boys' name of Japanese origin. In 2025 it ranked 8,906th for boys in the US (8 babies).
What does Seiji mean?
Japanese
A male given name from Japanese.
From Wiktionary, CC BY-SA 4.0.
Is Seiji a girl's or a boy's name?
Seiji is a boys' name. In 2025, it was given to 8 boys in the US. Too few girls were given it to be listed.
How popular is Seiji in the US?
- Rank in 2025
- 8,906th among boys
- Babies in 2025
- 8 about 1 in 210,000 boys
- Five-year trend
- Too rare to call too few babies to tell
- Same name in a class
- under 1% chance among 15 boys
In 2025, 8 boys in the US were named Seiji, making it the 8,906th most popular name for boys. Five years earlier, in 2020, it was 7,497th. Its busiest year was 2007, with 19 boys. It first appears in the records in 1914.
Half of all the boys named Seiji in the US since 1880 were born between 1978 and 2011, the years shaded on the chart below.
Seiji in the US, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 8 | #8,906 |
| 2024 | 8 | #8,982 |
| 2023 | 9 | #8,250 |
| 2022 | 7 | #9,815 |
| 2021 | 7 | #9,709 |
| 2020 | 10 | #7,497 |
| 2019 | 5 | #12,138 |
| 2018 | 6 | #10,754 |
| 2017 | 12 | #6,681 |
| 2016 | 7 | #9,659 |
| 2015 | 11 | #7,061 |
| 2014 | 12 | #6,627 |
| 2013 | 10 | #7,532 |
| 2012 | 15 | #5,714 |
| 2011 | 16 | #5,429 |
| 2010 | 12 | #6,692 |
| 2009 | 7 | #9,859 |
| 2008 | 13 | #6,388 |
| 2007 | 19 | #4,806 |
| 2006 | 14 | #5,777 |
| 2005 | 13 | #5,869 |
| 2004 | 10 | #6,970 |
| 2003 | 11 | #6,251 |
| 2002 | 12 | #5,718 |
| 2001 | 10 | #6,438 |
| 2000 | 7 | #8,202 |
| 1999 | 10 | #6,036 |
| 1998 | 9 | #6,308 |
| 1997 | 11 | #5,282 |
| 1996 | 8 | #6,489 |
| 1995 | 13 | #4,502 |
| 1994 | 5 | #8,794 |
| 1993 | 5 | #8,693 |
| 1992 | 9 | #5,652 |
| 1991 | 0 | – |
| 1990 | 5 | #8,108 |
| 1989 | 9 | #5,158 |
| 1988 | 0 | – |
| 1987 | 0 | – |
| 1986 | 0 | – |
| 1985 | 8 | #4,693 |
| 1984 | 5 | #6,311 |
| 1983 | 0 | – |
| 1982 | 9 | #4,232 |
| 1981 | 0 | – |
| 1980 | 0 | – |
| 1979 | 8 | #4,401 |
| 1978 | 5 | #5,769 |
| 1977 | 5 | #5,843 |
| 1976 | 0 | – |
| 1975 | 0 | – |
| 1974 | 5 | #5,225 |
| 1973 | 0 | – |
| 1972 | 0 | – |
| 1971 | 0 | – |
| 1970 | 5 | #4,722 |
| 1969 | 0 | – |
| 1968 | 0 | – |
| 1967 | 0 | – |
| 1966 | 0 | – |
| 1965 | 0 | – |
| 1964 | 0 | – |
| 1963 | 0 | – |
| 1962 | 0 | – |
| 1961 | 0 | – |
| 1960 | 0 | – |
| 1959 | 0 | – |
| 1958 | 0 | – |
| 1957 | 0 | – |
| 1956 | 0 | – |
| 1955 | 0 | – |
| 1954 | 0 | – |
| 1953 | 0 | – |
| 1952 | 0 | – |
| 1951 | 0 | – |
| 1950 | 0 | – |
| 1949 | 0 | – |
| 1948 | 0 | – |
| 1947 | 0 | – |
| 1946 | 0 | – |
| 1945 | 0 | – |
| 1944 | 0 | – |
| 1943 | 0 | – |
| 1942 | 0 | – |
| 1941 | 0 | – |
| 1940 | 0 | – |
| 1939 | 5 | #3,479 |
| 1938 | 6 | #3,174 |
| 1937 | 6 | #3,175 |
| 1936 | 0 | – |
| 1935 | 0 | – |
| 1934 | 5 | #3,677 |
| 1933 | 0 | – |
| 1932 | 0 | – |
| 1931 | 0 | – |
| 1930 | 0 | – |
| 1929 | 8 | #2,978 |
| 1928 | 0 | – |
| 1927 | 5 | #4,208 |
| 1926 | 8 | #3,137 |
| 1925 | 12 | #2,434 |
| 1924 | 11 | #2,641 |
| 1923 | 11 | #2,613 |
| 1922 | 8 | #3,250 |
| 1921 | 5 | #4,320 |
| 1920 | 6 | #3,814 |
| 1919 | 5 | #4,167 |
| 1918 | 0 | – |
| 1917 | 5 | #3,979 |
| 1916 | 0 | – |
| 1915 | 0 | – |
| 1914 | 6 | #2,914 |
Names like Seiji
Names given in the same years and the same naming tradition, with a similar sound.
Eli, Levi, Kenji, Malachi, Silas, Simon, Jackson, Noah, Gianni, Hudson, Isaac, Walker
More Japanese names
Kobe, Kaizen, Raiden, Ren, Akari, Kenzo, Ronin, Kyomi, Akira, Yuna, Emi, Kiyomi, Kairi, Miya, Reo, Jiraiya
Sources
Figures from Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.
To cite this page: Nameling, “Seiji: name meaning, origin and popularity”, https://www.nameling.co.uk/names/seiji, updated 20 October 2026.