{{Infoboks software licens
| forfatter       = [[Internet Systems Consortium]]
| DFSG-kompatibel = Ja
| OSI-godkendt    = Ja
| FSF-godkendt    = Ja
| GPL-kompatibel  = Ja
| copyleft        = Nej
}}
'''ISC-licensen''' er en [[fri software|fri]]/[[open source]] software licens skrevet af [[Internet Systems Consortium]] (ISC). Licensen er funktionelt lig [[BSD-licenserne#2-klausul BSD-licensen .28.22simplificeret BSD-licens.22 eller .22FreeBSD-licensen.22.29|2-klausul BSD-licensen]] (også kendt som »FreeBSD-licensen« eller »den simplificerede BSD-licens«), men sproget er simplificeret. Siden [[2003]] har ISC-licensen været [[OpenBSD]]-projektets foretrukne software licens. Licensen er godkendt som fri/open source af [[Free Software Foundation]]<ref> {{cite web | url = http://www.gnu.org/licenses/license-list.html#ISC | title = Various Licenses and Comments about Them - GNU Project - Free Software Foundation (FSF) | accessdate = 2012-06-06 | author = Free Software Foundation}}</ref> og [[Open Source Initiative]]<ref> {{cite web | url = http://opensource.org/licenses/ISC | title = ISC License (ISC) / Open Source Initiative | accessdate = 2012-06-06 | author = Open Source Initiative}}</ref>.
Immaterialret