Keil is a rare variant of Kelly that was most common in the 1980s and has all but disappeared.
Keil is a boy name. It last appears in U.S. records in 2015. Keil was first reported in SSA data in 1966 and peaked in 1985 (24 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2015 | 5 | 5 | #13,091 |
| 2008 | 8 | 8 | #9,452 |
| 2007 | 5 | 5 | #13,439 |
| 2003 | 7 | 7 | #9,184 |
| 2001 | 5 | 5 | #11,508 |
| 2000 | 6 | 6 | #9,738 |
| 1999 | 6 | 6 | #9,332 |
| 1998 | 5 | 5 | #10,490 |
| 1996 | 7 | — | #7,573 |
| 1995 | 8 | — | #6,699 |
| 1994 | 10 | — | #5,681 |
| 1993 | 12 | — | #4,870 |
| 1992 | 7 | — | #7,062 |
| 1991 | 15 | — | #3,925 |
| 1990 | 8 | — | #6,139 |
| 1989 | 11 | — | #4,674 |
| 1988 | 11 | — | #4,316 |
| 1987 | 13 | — | #3,632 |
| 1986 | 10 | — | #4,310 |
| 1985 | 24 | — | #2,263 |
| 1984 | 20 | — | #2,491 |
| 1983 | 15 | — | #3,003 |
| 1982 | 18 | — | #2,646 |
| 1981 | 14 | — | #3,134 |
| 1980 | 7 | — | #5,236 |
| 1979 | 5 | — | #6,554 |
| 1978 | 5 | — | #6,307 |
| 1977 | 7 | — | #4,875 |
| 1976 | 5 | — | #6,042 |
| 1975 | 5 | — | #5,910 |
| 1972 | 10 | — | #3,252 |
| 1971 | 5 | — | #5,295 |
| 1969 | 6 | — | #4,172 |
| 1968 | 5 | — | #4,436 |
| 1966 | 7 | — | #3,382 |