Mara Balls (real name Maria Mattila, born 1983) is a Finnish singer-songwriter, rock guitarist, and artist. She was the bassist of Jukka ja Jytämimmit. After the band broke up, she set up her own band with bassist Aapo Palonen and drummer Antti Palmu. Mattila received the Newcomer of the Year Award at the Finnish Blues Awards gala. She has also been active developing city culture, for which the city of Tampere awarded her 2014.