Karl Tutwiler Adams (August 11, 1891 – September 17, 1967), nicknamed "Rebel", was an American right-handed pitcher in Major League Baseball. He played for the Cincinnati Reds (1914) and Chicago Cubs (1915) of the National League, compiling a 1-9 won-lost record in his brief career.
Adams was a native of Columbus, Georgia. He died in Everett, Washington, where he had lived for the previous 27 years. He was a veteran of World War I and a member of the Veterans of Foreign Wars Old Guard Post 2100. After baseball, Karl worked for a number of years as a golf professional in Illinois and Kentucky. He was also a member of the Plumber and Pipefitters Union Local 265 and the Port Gardner Golf Club at Everett's Municipal Golf Course.