Thomas Nelson Doyle (born May 1, 1996) is an American professional baseball pitcher in the Colorado Rockies organization.

[7] He made his major league debut that night against the San Francisco Giants.

[9] Doyle began the 2023 season with the Triple–A Albuquerque Isotopes, making 22 appearances and logging a stellar 1.01 ERA with 29 strikeouts and 3 saves in 26+2⁄3 innings pitched.

[12] He spent the 2024 season with the Triple-A Gwinnett Stripers, also making one appearance for the rookie-level Florida Complex League Braves.

In 33 games for Gwinnett, Doyle compiled a 3-2 record and 3.48 ERA with 45 strikeouts and 3 saves across 41+1⁄3 innings pitched.