Uno Loop (31 May 1930 – 8 September 2021) or Loobi Unn was an Estonian singer, musician, athlete, actor, and educator. Loop's career as a musician and singer began in the early 1950s. He was born in Tallinn, Estonia. He was awarded the Order of the White Star in 2001.
From 1975 until 1992, Loop taught guitar, song, and music at the Georg Ots Tallinn Music School. In 1980, he returned to studies at Tallinn Pedagogical University.
Loop died at a nursing home in Keila, Estonia on 8 September 2021, from problems caused by Alzheimer's disease, aged 91.