Thien is a rare boys' name that peaked in 1996 and has since faded.
Thien is predominantly a boy name. In 2025 it ranked #11,848 for boy births in the United States (and #24,465 across all names), given to 6 babies. Thien first appears in 1977 and peaked in 1996 (42 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 6 | 6 | — | #11,848 |
| 2024 | 11 | 11 | — | #7,708 |
| 2023 | 11 | 11 | — | #7,682 |
| 2022 | 18 | 18 | — | #5,417 |
| 2021 | 17 | 17 | — | #5,536 |
| 2020 | 21 | 21 | — | #4,683 |
| 2019 | 19 | 19 | — | #5,131 |
| 2018 | 17 | 17 | — | #5,519 |
| 2017 | 23 | 23 | — | #4,450 |
| 2016 | 24 | 24 | — | #4,311 |
| 2015 | 13 | 13 | — | #6,639 |
| 2014 | 27 | 27 | — | #3,879 |
| 2013 | 22 | 22 | — | #4,447 |
| 2012 | 18 | 18 | — | #5,221 |
| 2011 | 19 | 19 | — | #4,964 |
| 2010 | 26 | 26 | — | #3,983 |
| 2009 | 23 | 23 | — | #4,418 |
| 2008 | 35 | 35 | — | #3,275 |
| 2007 | 39 | 39 | #17,470 | #3,375 |
| 2006 | 24 | 24 | — | #4,090 |
| 2005 | 35 | 35 | — | #3,016 |
| 2004 | 26 | 26 | — | #3,624 |
| 2003 | 29 | 29 | #18,199 | #3,719 |
| 2002 | 26 | 26 | — | #3,441 |
| 2001 | 25 | 25 | — | #3,501 |
| 2000 | 29 | 29 | — | #3,067 |
| 1999 | 24 | 24 | — | #3,362 |
| 1998 | 16 | 16 | — | #4,393 |
| 1997 | 23 | — | — | #3,253 |
| 1996 | 42 | — | — | #2,072 |
| 1995 | 32 | — | #13,265 | #2,840 |
| 1994 | 26 | — | — | #2,839 |
| 1993 | 26 | — | — | #2,777 |
| 1992 | 23 | — | — | #2,989 |
| 1991 | 35 | — | #15,260 | #2,398 |
| 1990 | 22 | — | — | #2,947 |
| 1989 | 27 | — | — | #2,463 |
| 1988 | 23 | — | — | #2,591 |
| 1987 | 22 | — | — | #2,551 |
| 1986 | 15 | — | — | #3,252 |
| 1985 | 20 | — | — | #2,593 |
| 1984 | 25 | — | #9,078 | #2,699 |
| 1983 | 21 | — | — | #2,403 |
| 1982 | 17 | — | — | #2,817 |
| 1981 | 27 | — | — | #2,031 |
| 1980 | 16 | — | — | #2,947 |
| 1979 | 8 | — | — | #4,806 |
| 1978 | 6 | — | — | #5,701 |
| 1977 | 5 | — | — | #6,776 |