Isaac Oviedo (July 6, 1902 – June 16, 1992) was a Cuban tres player, singer and songwriter. He was the founder and leader of the Septeto Matancero for over 50 years, and the author of many famous sones such as "Engancha carretero". Throughout his long career Oviedo only recorded a handful of sessions, mostly for American record labels. He has been called "one of the greatest Cuban tres players" by other musicians such as Efraín Ríos and Pancho Amat. According to the latter, Oviedo was the pioneering and most influential tresero of the septeto format (the major type of son ensemble of the 1920s and '30s). His technical innovations include the alzapúa thumb stroke and the use of the pinky finger.