John Francis "Sean" Lynch (born 22 October 1942)^[1] is a former Ireland international rugby union player He played for and captained Leinster. He owns the Swan Bar on Aungier Street in Dublin

Lynch was capped 17 times as a prop for Ireland between 1971 and 1975^[2] and toured New Zealand in 1971 with the British and Irish Lions playing in all four tests against the All Blacks. He played club rugby for St. Mary's College R.F.C. ^{[citation needed]}