The Battle of Kilmacrennan was a skirmish fought near Kilmacrennan, County Donegal in 1608 during O'Doherty's Rebellion. Sir Cahir O'Doherty was a traditional supporter of the Crown whose treatment at the hands of local officials had led him to launch a rebellion in which he had seized the garrison town of Derry, killing his enemy George Paulet. O'Doherty raised local forces and possibly hoped to negotiate an agreement with the government as had been common with leaders of previous rebellions.