Willis Roy Eken (April 12, 1931 – May 8, 2010) was an American politician and farmer.
Born in Ada, Minnesota, Eken graduated from Twin Valley High School in Twin Valley, Minnesota and was a farmer.
He served as President of the Minnesota Farmers Union.
Eken served in the Minnesota House of Representatives, as a Democrat, from 1971 to 1984.
His son Kent Eken also served in the Minnesota State Legislature.