John Weldon Wyckoff (February 19, 1893 – May 8, 1961) was a professional baseball pitcher. He played all or part of six seasons in Major League Baseball for the Philadelphia Athletics (1913–16) and Boston Red Sox (1917-18). Wyckoff batted and threw right-handed. In some baseball resources, he is referred as John Wyckoff. In his major league career, Wyckoff posted a 23–34 record with 299 strikeouts and a 3.55 ERA in 573.2 innings pitched. Wyckoff died in Sheboygan Falls, Wisconsin, at the age of 69.