Kane O'Hara (1711 or 1712 – 17 June 1782) was an Irish composer and playwright.
O'Hara was born at Templehouse, Connaught, Ireland, the second son of Kean O'Hara, high-sheriff of County Sligo. He graduated from Trinity College, Dublin in 1735. In 1757 he was a co-founder member, with the Earl of Mornington, of the Musical Academy in Dublin.
His first publicly performed piece was the burletta Midas, stylistically a bridge between ballad opera and comic opera. The work mixes Irish, English, French and Italian popular airs in O'Hara's arrangements with spoken recitatives. "O'Hara's verse rarely rises above clever doggerel."
In 1774, Kane established a theatre in Dublin called Mr. Punch's Patagonian Theatre, which in 1776 transferred to London, producing puppet show versions of operas and burlettas. He went blind in 1781 but continued his interest in theatre until his death in Dublin the following year. A number of his papers and manuscripts are held at the National Library of Ireland.