Phi
- Last seen for girls in 2009 at #17,294
- Last seen for boys in 2015 at #7,491
- Given to boys 91.3% of the time
Showing
- Peak · boys
- 1986 · 23 births
- Debut · boys
- 5 births
- In top 100 · boys
- neverof 146 years
- Total births · boys
- 474since 1976
Phi over time
girlsboys
Rank within each sex, plotted together. Click any year to open it.
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 | girls | boys | ||
|---|---|---|---|---|
| rank | births | rank | births | |
| 2025 | — | — | ||
| 2024 | — | — | ||
| 2023 | — | — | ||
| 2022 | — | — | ||
| 2021 | — | — | ||
| 2020 | — | — | ||
| 2019 | — | — | ||
| 2018 | — | — | ||
| 2017 | — | — | ||
| 2016 | — | — | ||
| 2015 | — | #7,491 | 10 | |
| 2014 | — | — | ||
| 2013 | — | — | ||
| 2012 | — | #12,274 | 5 | |
| 2011 | — | — | ||
| 2010 | — | #12,231 | 5 | |
| 2009 | #17,294 | 5 | #8,310 | 9 |
| 2008 | — | #7,187 | 11 | |
| 2007 | — | #8,915 | 8 | |
| 2006 | — | #7,998 | 9 | |
| 2005 | — | #7,096 | 10 | |
| 2004 | — | #7,536 | 9 | |
| 2003 | — | #5,558 | 13 | |
| 2002 | — | #5,725 | 12 | |
| 2001 | — | #7,536 | 8 | |
| 2000 | — | #6,316 | 10 | |
| 1999 | — | #4,162 | 17 | |
| 1998 | — | #8,479 | 6 | |
| 1997 | — | #4,059 | 16 | |
| 1996 | #9,581 | 8 | #3,678 | 18 |
| 1995 | — | #6,407 | 8 | |
| 1994 | — | #3,326 | 20 | |
| 1993 | — | #3,819 | 16 | |
| 1992 | — | #2,670 | 26 | |
| 1991 | — | #2,683 | 25 | |
| 1990 | #11,409 | 6 | #3,166 | 19 |
| 1989 | #12,362 | 5 | #4,271 | 12 |
| 1988 | — | #3,079 | 17 | |
| 1987 | — | #2,400 | 23 | |
| 1986 | — | #2,360 | 23 | |
| 1985 | — | #3,401 | 13 | |
| 1984 | #10,422 | 5 | #2,824 | 16 |
| 1983 | #10,275 | 5 | #2,787 | 16 |
| 1982 | #9,237 | 6 | #2,831 | 16 |
| 1981 | #10,411 | 5 | #2,569 | 18 |
| 1980 | — | #3,838 | 10 | |
| 1979 | — | #3,810 | 10 | |
| 1978 | — | — | ||
| 1977 | — | #5,845 | 5 | |
| 1976 | — | #5,587 | 5 | |
| 1975 | — | — | ||
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| 1880 | — | — | ||
First appearance
1976
The first year at least five boys were named Phi! It came in at #5,587, and was given to 5 baby boys.
Quietest stretch: 1976–1978, when fewer than 6 boys a year got the name.
Where Phi is popular in 2025
No state had 5 or more boys named Phi in 2025, so the SSA doesn't publish it for any state.
See more about Phi
Momentum · boys
Faded out
- Not published in 2025; last seen 2015
Rise & fade · boys
10 yrs to peak
- Debuted 1976
- Peaked 1986 at #2,360 (23 births)
- Births halved by 1995, 9 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 76,823
- Highest: 1 in 76,823 boys born in 1992 were named Phi (0.00%)
- Latest: 1 in 191,674 boys born in 2015 (0.00%)
- Its best rank, #2,360 in 1986, was only 1 in 80,066 (0.00%) — a smaller share of a much bigger birth year
Era · boys
The 1990s
- 36.1% of all boys named Phi (171) were born in this decade
Girls or boys?
Never flipped
- The majority has never changed
Show by decade
| Decade | Births | Best rank | Avg rank |
|---|---|---|---|
| 1970s | 20 | #3,810 (1979) | #5,081 |
| 1980s | 164 | #2,360 (1986) | #3,036 |
| 1990s | 171 | #2,670 (1992) | #4,245 |
| 2000s | 99 | #5,558 (2003) | #7,218 |
| 2010s | 20 | #7,491 (2015) | #10,665 |
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 Phi ranked and which names it was up against. Click a point on the chart, or pick a year: