Newton Schurz Halliday (June 18, 1896 – April 6, 1918) was an American baseball player. He appeared in a portion of one game in Major League Baseball as a first baseman for the Pittsburgh Pirates on August 19, 1916. Halliday had three putouts and an assist in the game and struck out in his only at bat. Aside from his one major league game, there is no record of Halliday having a minor league baseball career.