Chelsei is a very rare variant of Chelsea that was most common in the 1990s and has all but disappeared.
Chelsei is a girl name. It last appears in U.S. records in 2013. Chelsei was first reported in SSA data in 1987 and peaked in 1992 (23 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2013 | 5 | 5 | #17,108 |
| 2007 | 5 | 5 | #18,203 |
| 2006 | 6 | 6 | #15,534 |
| 2005 | 5 | 5 | #17,030 |
| 2000 | 6 | 6 | #13,512 |
| 1998 | 6 | 6 | #12,777 |
| 1997 | 8 | — | #9,982 |
| 1996 | 15 | — | #6,119 |
| 1995 | 16 | — | #5,727 |
| 1994 | 6 | — | #12,082 |
| 1993 | 11 | — | #7,599 |
| 1992 | 23 | — | #4,399 |
| 1991 | 13 | — | #6,670 |
| 1990 | 12 | — | #6,951 |
| 1989 | 12 | — | #6,616 |
| 1988 | 7 | — | #9,451 |
| 1987 | 5 | — | #11,624 |