Uno Loop (31 May 1930 – 8 September 2021) was an Estonian singer, musician, athlete, actor, and educator. Loop's career as a musician and singer began in the early 1950s. He performed with various ensembles and as a popular soloist beginning in the 1960s. In his youth, he trained as a boxer, and became the 1947–48 light-middleweight two-time Estonian Junior Champion. Later, he trained as a triathlete. Between the late 1950s and the early 1990s, he taught music, voice and guitar. Loop also worked as an actor, and appeared in several films beginning in the 1960s and in several roles in Estonian television series.