Stary Olsa (Belarusian: Стары Ольса) is a Belarusian medieval folk band, that plays medieval Ruthenian music of the Grand Duchy of Lithuania. The band has also released several classical rock cover works in their Medieval Classic Rock where classical rock songs performed by bagpipes. Stary Olsa is one of the few Belarusian bands enjoying popularity outside Belarus. The band has received numerous positive critical reviews. They are also known for covering modern rock tracks using their medieval instruments, and released a cover album, via a Kickstarter campaign, in 2016.