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.

It was closed to passengers from November 10, 2013, to make way for the construction of the Hokkaido Shinkansen high-speed train line.

Tappi-Kaitei Station had two opposed side platforms serving two underground tracks.

The station housed a museum detailing the construction and operation of the tunnel.