Joseph Bert Tinker (July 27, 1880 – July 27, 1948) was an American professional baseball player and manager. He played from 1902 through 1916 for the Chicago Cubs and Cincinnati Reds of Major League Baseball (MLB) and the Chicago Whales of the Federal League.
Born in Muscotah, Kansas, Tinker began playing semi-professional baseball in Kansas in the late 19th century, first in Kansas City, then in Parsons. He began his professional career in 1900 in minor league baseball, initially in Denver then with Portland in the Northwestern League. He made his MLB debut with the Cubs in 1902. Tinker was a member of the Chicago Cubs dynasty that won four pennants and two World Series championships between 1906 and 1910.