Brian Boru pub & restaurant has been a mainstay in Portland, Maine, since 1993. The owners are indeed from Ireland. Brian Boru has a full bar, and menu with daily specials. Beer and cocktails also are on special during happy hour. Check out our weekly events include live bands every week from Thursday thru Sunday with no cover, ever. Brian Boru also has of the largest and best patios and upper deck in the downtown/Old Port area.