Marko Sakari Liias (born July 17, 1981) is an American politician serving as a member of the Washington State Senate, representing the 21st district since 2014. The district, located entirely within Snohomish County, includes portions of Lynnwood and Everett, as well as his hometown of Mukilteo and his native Edmonds. A member of the Democratic Party, he previously served as a member of the Washington House of Representatives from 2008 to 2014.