Kolbi is a rare variant of Kolby that peaked in 2010 and remains in steady use.
Kolbi is predominantly a girl name. In 2025 it ranked #3,617 for girl births in the United States (and #6,359 across all names), given to 42 babies. Kolbi first appears in 1984 and peaked in 2025 (42 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 42 | 42 | #3,617 | — |
| 2024 | 33 | 33 | #4,836 | #13,380 |
| 2023 | 35 | 35 | #4,811 | #10,307 |
| 2022 | 33 | 33 | #5,100 | #10,389 |
| 2021 | 38 | 38 | #5,170 | #6,531 |
| 2020 | 38 | 38 | #4,317 | #11,378 |
| 2019 | 31 | 31 | #5,382 | #10,349 |
| 2018 | 35 | 35 | #4,946 | #9,276 |
| 2017 | 43 | 43 | #4,873 | #5,954 |
| 2016 | 27 | 27 | #6,558 | #9,332 |
| 2015 | 40 | 40 | #4,355 | #10,166 |
| 2014 | 45 | 45 | #4,149 | #8,510 |
| 2013 | 31 | 31 | #6,141 | #7,854 |
| 2012 | 36 | 36 | #6,017 | #6,184 |
| 2011 | 46 | 46 | #3,965 | #9,236 |
| 2010 | 53 | 53 | #4,070 | #5,624 |
| 2009 | 50 | 50 | #4,239 | #6,294 |
| 2008 | 43 | 43 | #4,707 | #7,488 |
| 2007 | 23 | 23 | #7,264 | #13,510 |
| 2006 | 16 | 16 | #14,403 | #8,436 |
| 2005 | 21 | 21 | #8,618 | #8,757 |
| 2004 | 22 | 22 | #10,327 | #6,360 |
| 2003 | 22 | 22 | #8,803 | #7,020 |
| 2002 | 41 | 41 | #5,361 | #4,263 |
| 2001 | 49 | 49 | #4,386 | #3,918 |
| 2000 | 35 | 35 | #4,727 | #6,615 |
| 1999 | 39 | 39 | #4,391 | #5,198 |
| 1998 | 27 | 27 | #5,949 | #6,101 |
| 1997 | 26 | — | #4,929 | #10,127 |
| 1996 | 9 | — | #9,205 | — |
| 1995 | 23 | — | #5,328 | #9,669 |
| 1994 | 19 | — | #6,502 | #9,630 |
| 1993 | 24 | — | #5,559 | #7,245 |
| 1992 | 23 | — | #6,160 | #6,432 |
| 1991 | 12 | — | #7,185 | — |
| 1990 | 16 | — | #8,205 | #7,683 |
| 1989 | 6 | — | #11,587 | — |
| 1988 | 10 | — | #7,423 | — |
| 1987 | 8 | — | #8,372 | — |
| 1986 | 8 | — | #8,113 | — |
| 1985 | 9 | — | #7,260 | — |
| 1984 | 5 | — | #11,267 | — |