Erik Martin Andreas Ask-Upmark (born 13 May, 1973) is a Swedish musician and riksspelman on the svensk säckpipa (Swedish bagpipe). He mainly performs with the groups , and Falsobordone in which he plays säckpipa (Swedish bagpipe) and harp, together with his wife Anna Rynefors. He also plays skalmeja and portative organ. Ask-Upmark also runs the record company , which mainly publishes recordings and productions with Swedish folk music. Together with Anna Rynefors he also runs a production company. Ask-Upmark is the son of the author Barbro Karlén.