Ó Murchú (an older spelling was Ó Murchadha).
John Murphy (Seán Ó Murchú)
if a first name Murchadh.
As a surname: Ó Murchú (man); Ní Mhurchú (single female); Uí Mhurchú (married female).
Irish Bob Murphy was born in 1922.
Irish Bob Murphy died in 1961.
Eddie Murphy is black, though Murphy is generally considered to be an Irish name. Maybe a little bit of his blood is Irish.
Denis Murphy - Irish musician - died in 1974.
Denis Murphy - Irish musician - was born in 1910.
Jack Murphy - Irish politician - was born in 1920.
Beamish and Murphy's are both Irish Stouts.
Thomas Murphy - Irish republican - was born on 1949-08-26.
Gerard Murphy - Irish politician - was born on 1951-03-25.
Jack Murphy - Irish politician - died on 1984-07-11.
Irish
Murphy means "Decendent of the sea warrior"