Tappi-Kaitei Station (竜飛海底駅, Tappi-Kaitei-eki) was a railway station on the Kaikyo Line in Sotogahama, Aomori, Japan, operated by Hokkaido Railway Company (JR Hokkaido). The station is located within the Seikan Tunnel below the seabed of the Tsugaru Strait linking the main Japanese island of Honshu with the northern island of Hokkaido.