Mansi (Clemensa) Barberis (1899–1986) was a Romanian violinist, music educator, conductor, and composer.
Clemensa Barberis was born in Iaşi and began to improvise on the piano at an early age. When an aunt transcribed one of the pieces, composer George Enescu recommended that Barberis take theory lessons. She studied with Italian professors in Iaşi and later studied violin, voice, and composition at the George Enescu Conservatory.