Monica Groop (born 14 April 1958, Helsinki) is a Finnish operatic mezzo-soprano. After graduating from the Sibelius Academy, she joined the Finnish National Opera in 1986 where she remains a member. She has sung leading roles as a guest artist with several important theatres internationally, including the Los Angeles Opera, the Palais Garnier, the Royal Opera, London, and the Salzburg Festival to name just a few.