P123 (disambiguation)

P123 is a copolymer.

P123 may also refer to:
 * Jalan Tun Hamdan Sheikh Tahir, Penang state route P123
 * Papyrus 123, a biblical manuscript
 * Piaggio P.123, an Italian transport aircraft
 * TCG Beylerbeyi, a patrol boat of the Turkish Navy
 * P123, a state regional road in Latvia