Thao is a rare variant of Thea that peaked in 1984 and has since faded.
Thao is predominantly a girl name. It last appears in U.S. records in 2025. Thao was first reported in SSA data in 1975 and peaked in 1984 (58 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 5 | 5 | — | #13,686 |
| 2017 | 5 | 5 | #18,216 | — |
| 2015 | 5 | 5 | #18,870 | — |
| 2014 | 7 | 7 | #14,443 | — |
| 2013 | 7 | 7 | #14,472 | — |
| 2012 | 5 | 5 | #19,298 | — |
| 2011 | 9 | 9 | #12,064 | — |
| 2010 | 10 | 10 | #11,186 | — |
| 2009 | 7 | 7 | #15,109 | — |
| 2008 | 12 | 12 | #10,030 | — |
| 2007 | 13 | 13 | #9,501 | — |
| 2006 | 8 | 8 | #13,510 | — |
| 2005 | 10 | 10 | #10,858 | — |
| 2004 | 11 | 11 | #9,842 | — |
| 2003 | 16 | 16 | #7,182 | — |
| 2002 | 16 | 16 | #7,022 | — |
| 2001 | 18 | 18 | #6,301 | — |
| 2000 | 20 | 20 | #5,688 | — |
| 1999 | 34 | 34 | #4,080 | #11,442 |
| 1998 | 32 | 32 | #4,230 | #11,143 |
| 1997 | 24 | — | #4,502 | — |
| 1996 | 42 | — | #3,228 | #10,394 |
| 1995 | 34 | — | #3,771 | #10,183 |
| 1994 | 54 | — | #2,747 | #6,313 |
| 1993 | 53 | — | #2,766 | #6,175 |
| 1992 | 61 | — | #2,610 | #4,545 |
| 1991 | 57 | — | #2,882 | #3,803 |
| 1990 | 62 | — | #2,435 | #4,958 |
| 1989 | 54 | — | #2,924 | #3,600 |
| 1988 | 40 | — | #3,222 | #5,170 |
| 1987 | 63 | — | #2,043 | #5,412 |
| 1986 | 54 | — | #2,297 | #4,812 |
| 1985 | 57 | — | #2,134 | #5,715 |
| 1984 | 73 | — | #1,865 | #3,092 |
| 1983 | 59 | — | #2,131 | #3,609 |
| 1982 | 48 | — | #2,698 | #3,466 |
| 1981 | 45 | — | #2,483 | #6,178 |
| 1980 | 39 | — | #3,313 | #3,414 |
| 1979 | 28 | — | #3,653 | #5,978 |
| 1978 | 14 | — | #4,912 | — |
| 1977 | 10 | — | #6,309 | — |
| 1976 | 10 | — | #6,017 | — |
| 1975 | 6 | — | #8,967 | — |