Kellis is a very rare variant of Kelsie that was most common in the 2000s and has all but disappeared.
Kellis is predominantly a boy name. It last appears in U.S. records in 2017. Kellis first appears in 1918 and peaked in 1940 (9 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2017 | 5 | 5 | #17,179 | — |
| 2015 | 6 | 6 | #15,471 | — |
| 2013 | 6 | 6 | #15,598 | — |
| 2012 | 8 | 8 | #12,814 | — |
| 2010 | 7 | 7 | — | #10,249 |
| 2009 | 16 | 16 | #11,090 | #11,766 |
| 2008 | 14 | 14 | #8,749 | — |
| 2007 | 16 | 16 | #7,911 | — |
| 2006 | 11 | 11 | #10,263 | — |
| 2005 | 9 | 9 | #11,380 | — |
| 2004 | 8 | 8 | #12,195 | — |
| 2002 | 12 | 12 | #16,808 | #8,952 |
| 2001 | 6 | 6 | #14,450 | — |
| 2000 | 5 | 5 | — | #11,341 |
| 1999 | 6 | 6 | — | #9,335 |
| 1998 | 6 | 6 | — | #9,090 |
| 1985 | 6 | — | — | #6,176 |
| 1974 | 5 | — | — | #5,623 |
| 1972 | 6 | — | — | #4,724 |
| 1969 | 6 | — | — | #4,174 |
| 1968 | 5 | — | — | #4,437 |
| 1951 | 5 | — | — | #3,992 |
| 1949 | 5 | — | — | #3,976 |
| 1940 | 9 | — | — | #2,580 |
| 1927 | 5 | — | — | #4,499 |
| 1926 | 5 | — | — | #4,527 |
| 1925 | 6 | — | — | #3,966 |
| 1919 | 6 | — | — | #3,960 |
| 1918 | 5 | — | — | #4,499 |