Papyrus 51 (in the Gregory-Aland numbering), designated by siglum 𝔓51, is an early copy of the New Testament in Greek.

It is a papyrus manuscript of the Epistle to the Galatians, it contains only Gal.

The manuscript paleographically has been assigned to the 4th or 5th century.

[1] The Greek text of this codex is a representative of the Alexandrian text-type (proto-Alexandrian).

[1] It is currently housed at the Ashmolean Museum (P. Oxy 2157) in Oxford.