Thomas Alan Johnson (born August 24, 1983) is a former starting pitcher in Major League Baseball who played briefly for the Colorado Rockies in the 2011 season.

Born in Birmingham, Alabama, Johnson was signed as an undrafted agent by Colorado in 2005 out of Mississippi State University.

[2][3] He was immediately assigned to the rookie level Grand Junction Rockies, where he went 3–2 with a 3.97 earned run average and 78 strikeouts in 79+1⁄3 innings.

[7] His most recent appearance was in 2013, when he posted a 1–3 record with an 8.02 ERA in 10 games for Lancaster, including seven starts, striking out 20 while walking 21 in 33+2⁄3 innings of work.

In between, Johnson played winter ball with the Tiburones de La Guaira club of the Venezuelan League in the 2009 season.