Shinjuku Line (新宿線, Shinjuku-sen) refers to several Japanese railway lines:
- Seibu Shinjuku Line, owned by Seibu Railway
- Toei Shinjuku Line, owned by Tokyo Metropolitan Bureau of Transportation
See also
edit- Shōnan-Shinjuku Line, operated by JR East
Shinjuku Line (新宿線, Shinjuku-sen) refers to several Japanese railway lines: