Saulius Sondeckis (11 October 1928 – 3 February 2016) was a Lithuanian violinist, conductor, orchestra leader and professor. He founded the Lithuanian Chamber Orchestra in 1960 and was its artistic director and principal conductor until 2004.
Sondeckis was born in Šiauliai, Lithuania. He studied at Lithuanian Academy of Music and Theatre. Sondeckis died in Vilnius from a stroke on 3 February 2016. He was aged 87.