Fredi, born as Matti Kalevi Siitonen (Mikkeli, 23 July 1942) is a Finnish singer. He represented Finland in the Eurovision Song Contest 1967 with the song Varjoon-suojaan and was 12th.
In 1976 he was allowed to second chances, if the Group Fredi & The Friends he was 11th with the song Pump Pump (in English). The Friends that year were Titta Jokinen, Antti Hyvärinen, Aimo Lehto, Anneli Koivisto and Irma Tapio.