Birgit Finnilä (born January 20, 1931) is a Swedish contralto and opera singer.
Finnilä was born in Falkenberg, Sweden and studied at the Royal Academy of Music in London. She made her operatic debut in Göteborg in 1963. Though principally singing concert works, her operatic roles include parts in Britten’s The Rape of Lucretia, Gluck’s Orfeo ed Euridice, Handel’s Flavio, Mozart’s Le Nozze di Figaro, and Wagner’s Ring cycle.