Jussi Chydenius (born December 30, 1972) is a Finnish musician and composer. He is best known for singing bass in the vocal ensemble Rajaton. He is the son of composer Kaj Chydenius and director Kaisa Korhonen. His brother is music producer Kalle Chydenius. He played drums for the rock band Don Huonot from 1989 to 2001 and was a founding member. He also starred in the sketch comedy show Vintiöt. Chydenius was elected at the City Council of Helsinki in 2001 where he is also a member of the Cultural Board.