Jerzy Owsiak, (born 6 October 1953 in Gdansk) is a Polish journalist and social campaigner.
He is a founder of the Great Orchestra of Christmas Charity (WOSP / Wielka Orkiestra Swiatecznej Pomocy), one of the largest non-governmental, non-profit, charity organizations in Poland.
Owsiak is the main initiator and promoter for the group's Grand Finale, an annual worldwide festival involving music and other components intended to raise money for the medical care of children as well as the elderly suffering from various medical conditions.
He is also the creator of Pol'and'Rock Festival, formerly known as Przystanek Woodstock ("Woodstock Festival"), a large rock music festival that takes place in Kostrzyn nad Odra, to thank all the volunteers and supporters who take part in the Grand Finale each year.
Owsiak is married to Lidia Niedzwiedzka-Owsiak, the Medical Affairs Director for WOSP.
He is also a stained glass maker, and he has qualifications in psychotherapy.