John Webster Thomas (February 13, 1900 – August 19, 1977) was an American football player and coach.

He played college football as a fullback at the University of Chicago from 1921 to 1923 under Amos Alonzo Stagg.

Prior to 1919 he enlisted in the United States Army Air Service in World War I.

In 1919 and 1920 he played for Jamestown College in North Dakota and was chosen All-State fullback both years.

In 1921 he was picked by many writers to their All-Big Ten Conference team citing him as the driving force behind the Chicago road victory (9–0) over Princeton that year.

"(*) Camp refers to his 1922 backfield selections: Thomas, Eddie Kaw of Cornell, and Harry Kipke of Michigan.

The second was a home loss at Stagg Field to the 1922 Princeton Tigers football team (record 8–0) due to three missed extra points.

The three touchdowns were all scored by Thomas, who fell two feet short at the goal line on his fourth attempt with time expiring.

Thomas worked for the American Red Cross, Cummins Business Machine of Chicago, along with many other jobs later in life.