Markku Aro (Finnish pronunciation: ), born as Markku Tuomas Puputti (3 February 1950 in Mouhijärvi, Finland), is a Finnish singer who performed on Eurovision contest in 1971 in Ireland with the pop-duo Koivistolaiset. They appeared with the song "Tie uuteen päivään" ("Road to a New Day"). He has released many albums in his country.