Tiantongyuan station () is an interchange station between Line 5 and Line 18 of the Beijing Subway. The Line 5 station opened on October 7, 2007, and the Line 18 station opened on December 27, 2025.
It is known as Tiantongyuanxi station during construction. It was suggested to renamed to Tiantongyuan station or Taipingzhuang station in October 2005, and officially named as Tiantongyuan station.
Construction started on 14 November 2022. It opened on December 27, 2025.
The station has 2 elevated side platforms for Line 5 and an underground island platform for Line 18.
There are 6 exits, lettered A, B, C, D, E1 and E2. Exit A is accessible via a ramp and Exits C and E2 are accessible via elevators.