Triin Lellep (born December 29, 1985 in Tartu) is an Estonian actress and singer (soprano).

Triin Lellep graduated from Tartu Descartes Lyceum in 2005, Georg Ots Tallinn Music School in 2009 and Sibelius Academy in 2011, majoring in classical singing. In 2015, she continued her studies at the 8th University of Paris, majoring in musicology.

In the years 2013-2014, Triin Lellep worked as an opera agent at the opera agency International Opera Artists. Since 2014, she has lived in Paris as a freelance singer. Since 2018, she has been the soloist of the Orchester du Center Philharmonique. Since 2020, she has been cultivating a crossover style, mixing classical music with pop, rap, ethno and oriental sounds.