Kohei is a very rare boys' name that was most common in the 1990s and has all but disappeared.
Kohei is a boy name. It last appears in U.S. records in 2017. Kohei was first reported in SSA data in 1989 and peaked in 1993 (12 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2017 | 6 | 6 | #11,557 |
| 2014 | 9 | 9 | #8,506 |
| 2011 | 6 | 6 | #11,649 |
| 2008 | 6 | 6 | #11,916 |
| 2006 | 7 | 7 | #10,183 |
| 2004 | 6 | 6 | #10,749 |
| 2003 | 5 | 5 | #11,938 |
| 2002 | 9 | 9 | #7,378 |
| 2001 | 6 | 6 | #9,992 |
| 2000 | 7 | 7 | #8,719 |
| 1998 | 5 | 5 | #10,554 |
| 1997 | 5 | — | #10,120 |
| 1996 | 6 | — | #8,526 |
| 1994 | 12 | — | #4,981 |
| 1993 | 12 | — | #4,879 |
| 1992 | 11 | — | #5,091 |
| 1991 | 10 | — | #5,316 |
| 1990 | 9 | — | #5,620 |
| 1989 | 10 | — | #5,018 |