Seiji
- #8,910 for boys in 2025, 8 births
- Peak · boys
- 1925 · 12 births
- Debut · boys
- 6 births
- In top 100 · boys
- neverof 146 years
- Total births · boys
- 517since 1914
Seiji over time
boys
Rank among boys' names. Seiji has never cracked the top 2,000 here.
Hover or use arrow keys to read values by year; click or press Enter to open that year.
Gaps mean fewer than 5 babies received the name that year, so the SSA doesn't publish it.
Show data table
| Year | boys | |
|---|---|---|
| rank | births | |
| 2025 | #8,910 | 8 |
| 2024 | #8,987 | 8 |
| 2023 | #8,255 | 9 |
| 2022 | #9,823 | 7 |
| 2021 | #9,714 | 7 |
| 2020 | #7,502 | 10 |
| 2019 | #12,145 | 5 |
| 2018 | #10,760 | 6 |
| 2017 | #6,685 | 12 |
| 2016 | #9,664 | 7 |
| 2015 | #7,066 | 11 |
| 2014 | #6,632 | 12 |
| 2013 | #7,537 | 10 |
| 2012 | #5,720 | 15 |
| 2011 | #5,433 | 16 |
| 2010 | #6,698 | 12 |
| 2009 | #9,864 | 7 |
| 2008 | #6,393 | 13 |
| 2007 | #4,808 | 19 |
| 2006 | #5,781 | 14 |
| 2005 | #5,875 | 13 |
| 2004 | #6,976 | 10 |
| 2003 | #6,258 | 11 |
| 2002 | #5,725 | 12 |
| 2001 | #6,445 | 10 |
| 2000 | #8,209 | 7 |
| 1999 | #6,042 | 10 |
| 1998 | #6,314 | 9 |
| 1997 | #5,288 | 11 |
| 1996 | #6,496 | 8 |
| 1995 | #4,508 | 13 |
| 1994 | #8,800 | 5 |
| 1993 | #8,700 | 5 |
| 1992 | #5,660 | 9 |
| 1991 | — | |
| 1990 | #8,117 | 5 |
| 1989 | #5,165 | 9 |
| 1988 | — | |
| 1987 | — | |
| 1986 | — | |
| 1985 | #4,698 | 8 |
| 1984 | #6,315 | 5 |
| 1983 | — | |
| 1982 | #4,234 | 9 |
| 1981 | — | |
| 1980 | — | |
| 1979 | #4,403 | 8 |
| 1978 | #5,772 | 5 |
| 1977 | #5,845 | 5 |
| 1976 | — | |
| 1975 | — | |
| 1974 | #5,227 | 5 |
| 1973 | — | |
| 1972 | — | |
| 1971 | — | |
| 1970 | #4,724 | 5 |
| 1969 | — | |
| 1968 | — | |
| 1967 | — | |
| 1966 | — | |
| 1965 | — | |
| 1964 | — | |
| 1963 | — | |
| 1962 | — | |
| 1961 | — | |
| 1960 | — | |
| 1959 | — | |
| 1958 | — | |
| 1957 | — | |
| 1956 | — | |
| 1955 | — | |
| 1954 | — | |
| 1953 | — | |
| 1952 | — | |
| 1951 | — | |
| 1950 | — | |
| 1949 | — | |
| 1948 | — | |
| 1947 | — | |
| 1946 | — | |
| 1945 | — | |
| 1944 | — | |
| 1943 | — | |
| 1942 | — | |
| 1941 | — | |
| 1940 | — | |
| 1939 | #3,480 | 5 |
| 1938 | #3,175 | 6 |
| 1937 | #3,175 | 6 |
| 1936 | — | |
| 1935 | — | |
| 1934 | #3,679 | 5 |
| 1933 | — | |
| 1932 | — | |
| 1931 | — | |
| 1930 | — | |
| 1929 | #2,980 | 8 |
| 1928 | — | |
| 1927 | #4,210 | 5 |
| 1926 | #3,139 | 8 |
| 1925 | #2,435 | 12 |
| 1924 | #2,641 | 11 |
| 1923 | #2,614 | 11 |
| 1922 | #3,252 | 8 |
| 1921 | #4,322 | 5 |
| 1920 | #3,815 | 6 |
| 1919 | #4,168 | 5 |
| 1918 | — | |
| 1917 | #3,981 | 5 |
| 1916 | — | |
| 1915 | — | |
| 1914 | #2,915 | 6 |
| 1913 | — | |
| 1912 | — | |
| 1911 | — | |
| 1910 | — | |
| 1909 | — | |
| 1908 | — | |
| 1907 | — | |
| 1906 | — | |
| 1905 | — | |
| 1904 | — | |
| 1903 | — | |
| 1902 | — | |
| 1901 | — | |
| 1900 | — | |
| 1899 | — | |
| 1898 | — | |
| 1897 | — | |
| 1896 | — | |
| 1895 | — | |
| 1894 | — | |
| 1893 | — | |
| 1892 | — | |
| 1891 | — | |
| 1890 | — | |
| 1889 | — | |
| 1888 | — | |
| 1887 | — | |
| 1886 | — | |
| 1885 | — | |
| 1884 | — | |
| 1883 | — | |
| 1882 | — | |
| 1881 | — | |
| 1880 | — | |
First appearance
1914
The first year at least five boys were named Seiji! It came in at #2,915, and was given to 6 baby boys.
Quietest stretch: 1915–1919, when fewer than 6 boys a year got the name.
Where Seiji is popular in 2025
No state had 5 or more boys named Seiji in 2025, so the SSA doesn't publish it for any state.
See more about Seiji
Momentum · boys
Holding steady
- 77 spots since 2024 (#8,987 → #8,910)
- 1,408 spots since 2020 (#7,502 → #8,910)
Rise & fade · boys
11 yrs to peak
- Debuted 1914
- Peaked 1925 at #2,435 (12 births)
- Births halved by 1927, 2 yrs later
Top of the charts · boys
Never in the top 1,000
- Top 10: never
- Top 100: never
- Top 1,000: never
Share of babies · boys
1 in 92,993
- Highest: 1 in 92,993 boys born in 1925 were named Seiji (0.00%)
- Latest: 1 in 213,509 boys born in 2025 (0.00%)
Era · boys
The 2000s
- 22.4% of all boys named Seiji (116) were born in this decade
Show by decade
| Decade | Births | Best rank | Avg rank |
|---|---|---|---|
| 1910s | 16 | #2,915 (1914) | #3,688 |
| 1920s | 74 | #2,435 (1925) | #3,268 |
| 1930s | 22 | #3,175 (1937) | #3,377 |
| 1940s | 0 | — | — |
| 1950s | 0 | — | — |
| 1960s | 0 | — | — |
| 1970s | 28 | #4,403 (1979) | #5,194 |
| 1980s | 31 | #4,234 (1982) | #5,103 |
| 1990s | 75 | #4,508 (1995) | #6,658 |
| 2000s | 116 | #4,808 (2007) | #6,633 |
| 2010s | 106 | #5,433 (2011) | #7,834 |
| 2020s | 49 | #7,502 (2020) | #8,865 |
All figures count published births only (names given to at least 5 boys in a year). Registrations before 1937 are incomplete, so early shares and totals run low.
Want to check a specific year?
See where Seiji ranked and which names it was up against. Click a point on the chart, or pick a year: