Ira Felix Thomas (January 22, 1881 – October 11, 1958) was an American professional baseball player.

[1] Thomas was born in Ballston Spa, New York, and began his playing career in the minor Connecticut League in 1902.

After playing two seasons with the Highlanders in the major leagues, Thomas moved to the Tigers in 1908 and served as backup catcher to Boss Schmidt.

He was the team captain and shared equal catching duty with Jack Lapp as the Athletics won consecutive World Series in 1910 and 1911.

After retiring, Thomas was a scout for the Athletics, remaining with the franchise even as it relocated to Kansas City in 1955.