Garreth is a rare variant of Garth that was most common in the 1990s and has all but disappeared.
Garreth is a boy name. It last appears in U.S. records in 2017. Garreth was first reported in SSA data in 1940 and peaked in 1990 (19 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2017 | 5 | 5 | #12,907 |
| 2016 | 7 | 7 | #10,002 |
| 2015 | 8 | 8 | #9,021 |
| 2013 | 8 | 8 | #9,068 |
| 2012 | 5 | 5 | #12,888 |
| 2011 | 6 | 6 | #11,297 |
| 2009 | 8 | 8 | #9,269 |
| 2007 | 6 | 6 | #11,397 |
| 2006 | 10 | 10 | #7,611 |
| 2005 | 10 | 10 | #7,296 |
| 2004 | 7 | 7 | #9,253 |
| 2003 | 10 | 10 | #6,894 |
| 2002 | 16 | 16 | #4,774 |
| 2001 | 16 | 16 | #4,748 |
| 2000 | 8 | 8 | #7,697 |
| 1999 | 14 | 14 | #4,854 |
| 1998 | 18 | 18 | #3,900 |
| 1997 | 10 | — | #5,787 |
| 1996 | 11 | — | #5,308 |
| 1995 | 13 | — | #4,610 |
| 1994 | 9 | — | #6,021 |
| 1993 | 11 | — | #5,127 |
| 1992 | 16 | — | #3,809 |
| 1991 | 9 | — | #5,667 |
| 1990 | 19 | — | #3,216 |
| 1989 | 10 | — | #4,943 |
| 1988 | 17 | — | #3,122 |
| 1987 | 8 | — | #5,123 |
| 1986 | 12 | — | #3,712 |
| 1985 | 9 | — | #4,446 |
| 1984 | 11 | — | #3,781 |
| 1983 | 6 | — | #5,720 |
| 1982 | 9 | — | #4,348 |
| 1981 | 5 | — | #6,611 |
| 1980 | 6 | — | #5,774 |
| 1979 | 6 | — | #5,595 |
| 1977 | 6 | — | #5,367 |
| 1972 | 8 | — | #3,749 |
| 1971 | 5 | — | #5,184 |
| 1970 | 11 | — | #2,961 |
| 1969 | 11 | — | #2,751 |
| 1968 | 7 | — | #3,476 |
| 1965 | 8 | — | #3,070 |
| 1962 | 6 | — | #3,781 |
| 1949 | 5 | — | #3,886 |
| 1940 | 5 | — | #3,638 |