Line 23 may refer to:
- Line 23 (São Paulo Metro)
- Line 23 (Shanghai Metro)
- In Widescreen signaling, a signal is encoded in line 23 for PAL and SECAM systems
This disambiguation page lists articles associated with the title Line 23.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
If an internal link led you here, you may wish to change the link to point directly to the intended article.