Lee Tae-yang (Korean: 이태양; born January 28, 1993, in Cheongju, Chungcheongbuk-do) is a South Korean pitcher who played for the NC Dinos in the Korea Baseball Organization.

In August 2010 Lee was selected as a member of the South Korean U-18 national team for the 2010 World Junior Baseball Championship held in Edmonton, Alberta, Canada.

Lee appeared in the first game of the 5th–8th placement round against the USA, coming on in relief in the top of the third inning, and threw one scoreless inning striking out Indians' 2011 first-round pick Francisco Lindor.

In the 2011 KBO Draft, Lee was selected by the Nexen Heroes as the 14th overall pick.

For two years with the Heroes, Lee appeared in only nine games in relief, having a 0–1 record and an ERA of 5.19 with one hold.