Sannō Station opened in September 1944. As Chunichi Dragons were based in the adjacent Nagoya Baseball Stadium, the station name was changed to Chūnichi-kyūjō-mae Station (中日球場前駅, Chūnichi-kyūjō-mae-eki) in 1956 and then Nagoya-kyūjō-mae Station (ナゴヤ球場前駅, Nagoya-kyūjō-mae-eki) in 1976. Following the Dragons' move to Nagoya Dome in 1997, the station name was restored in January 2005.[2]