Pat McDonagh may refer to:
Pat McDonagh (businessman), founder of Supermac's, an Irish fast food franchiser Pat McDonagh (sportsman) (born 1957), Irish Olympic rower and bobsledder Pat McDonagh (fashion designer) (1934–2014), British fashion designer Pat McDonagh (piper) (died 1904), Irish piper See also Patrick McDonagh (1906–?), Scottish footballer