Jalur Tokyu Oimachi (東 急 大 井 町 線, Tōkyū Ōimachi-sen) adalah jalur kereta api di Jepang yang dioperasikan oleh operator kereta api swasta Tokyu Corporation. Itu membentang dari Ōimachi di Shinagawa, Tokyo ke Mizonokuchi di Kawasaki, Kanagawa.
Stasiun
All-stations "Local" services are classified as blue and green. The latter runs on the express track between Futako-Tamagawa and Mizonokuchi and does not stop at Futako-Shinchi or Takatsu. Limited-stop "Express" services are also provided.