Roy Edward Sievers (November 18, 1926 – April 3, 2017) was a first baseman/left fielder in Major League Baseball. From 1949 through 1965, Sievers played for the St. Louis Browns (1949–53), the original Washington Senators (1954–59), Chicago White Sox (1960–61), Philadelphia Phillies (1962–64), and finally the new Senators (1964–65). He batted and threw right-handed.
Signed by the St. Louis Browns as a free agent in 1947, Sievers debuted in the major leagues on April 21, 1949.
Sievers died in his home in Spanish Lake, Missouri, on April 3, 2017, aged 90.