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.

He died in Everett, Washington, where he had lived for the previous 27 years.

After baseball, Karl worked for a number of years as a golf professional in Illinois and Kentucky.

This biographical article relating to an American baseball pitcher born in the 1890s is a stub.