Erkki Gustaf Melartin (7 February 1875, Käkisalmi – 14 February 1937, Helsinki) was a Finnish composer, conductor, and teacher of the late-Romantic and early-modern periods. Melartin is generally considered to be one of Finland's most significant national Romantic composers, although his music—then and now—largely has been overshadowed by that of his exact contemporary, Jean Sibelius, the country's most famous composer. The core of Melartin's oeuvre consists of a set of six (completed) symphonies, as well as is his opera, Aino, based on a story from the Kalevala, Finland's national epic, but nevertheless in the style of Richard Wagner.