Colbi is a rare variant of Colby that peaked in 2025 and remains in steady use.
Colbi is predominantly a girl name. In 2025 it ranked #4,681 for girl births in the United States (and #8,114 across all names), given to 29 babies. Colbi first appears in 1985 and peaked in 2025 (29 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 29 | 29 | #4,681 | — |
| 2024 | 10 | 10 | #9,698 | — |
| 2023 | 16 | 16 | #7,001 | — |
| 2022 | 19 | 19 | #6,269 | — |
| 2021 | 23 | 23 | #6,461 | #12,494 |
| 2020 | 17 | 17 | #6,698 | — |
| 2019 | 12 | 12 | #8,707 | — |
| 2018 | 8 | 8 | #11,631 | — |
| 2017 | 11 | 11 | #9,458 | — |
| 2016 | 18 | 18 | #6,717 | — |
| 2015 | 14 | 14 | #8,103 | — |
| 2014 | 21 | 21 | #6,033 | — |
| 2013 | 16 | 16 | #7,473 | — |
| 2012 | 17 | 17 | #7,213 | — |
| 2011 | 28 | 28 | #6,194 | #9,818 |
| 2010 | 25 | 25 | #5,459 | — |
| 2009 | 14 | 14 | #8,543 | — |
| 2008 | 27 | 27 | #6,176 | #12,870 |
| 2007 | 15 | 15 | #8,192 | — |
| 2006 | 7 | 7 | #13,914 | — |
| 2005 | 12 | 12 | #13,319 | #11,764 |
| 2004 | 18 | 18 | #9,393 | #9,119 |
| 2003 | 18 | 18 | #8,093 | #11,202 |
| 2002 | 22 | 22 | #7,132 | #8,621 |
| 2001 | 25 | 25 | #5,625 | #10,882 |
| 2000 | 25 | 25 | #5,996 | #8,346 |
| 1999 | 17 | 17 | #5,964 | — |
| 1998 | 13 | 13 | #7,196 | — |
| 1997 | 7 | — | #11,104 | — |
| 1996 | 15 | — | #6,131 | — |
| 1995 | 27 | — | #4,710 | #7,969 |
| 1994 | 17 | — | #7,205 | #9,042 |
| 1993 | 5 | — | — | #8,955 |
| 1992 | 12 | — | #7,138 | — |
| 1991 | 18 | — | #5,219 | — |
| 1990 | 15 | — | #5,888 | — |
| 1989 | 8 | — | #8,919 | — |
| 1988 | 12 | — | #6,355 | — |
| 1987 | 15 | — | #5,119 | — |
| 1986 | 12 | — | #5,840 | — |
| 1985 | 9 | — | #7,067 | — |