Erja Lyytinen (born July 7, 1976) is a Finnish blues guitarist and singer-songwriter.
Lyytinen started playing guitar at age fifteen and sang in a soul music group. Her influences include singers Aretha Franklin, Koko Taylor, and Bonnie Raitt. Lyytinen is a 1995 graduate of Kuopio Senior High of Music and Dance. She studied from 1995 to 2003 at the Kuopio Conservatoire and Sibelius Academy in Helsinki, and has a Master of Music degree.
Lyytinen's debut album was the 2002 release Attention!. In 2005 she signed with the German label Ruf Records and recorded her third solo album in Oxford, Mississippi. Lyytinen has toured across Europe. In 2010 she was the supporting act for Walter Trout on his British tour.