Issiac is a very rare boys' name that was most common in the 2000s and has all but disappeared.
Issiac is a boy name. It last appears in U.S. records in 2012. Issiac first appears in 1981 and peaked in 2006 (13 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2012 | 7 | 7 | #10,128 |
| 2010 | 5 | 5 | #13,010 |
| 2009 | 5 | 5 | #13,212 |
| 2008 | 9 | 9 | #8,558 |
| 2007 | 5 | 5 | #13,102 |
| 2006 | 13 | 13 | #6,236 |
| 2005 | 8 | 8 | #8,596 |
| 2003 | 8 | 8 | #8,138 |
| 2002 | 7 | 7 | #8,821 |
| 2001 | 7 | 7 | #8,655 |
| 2000 | 5 | 5 | #11,060 |
| 1999 | 9 | 9 | #6,736 |
| 1998 | 5 | 5 | #10,249 |
| 1991 | 6 | — | #7,643 |
| 1981 | 6 | — | #5,798 |