Papyrus 13, designated by siglum 𝔓13 or P13 in the Gregory-Aland numbering, is a fragmentary manuscript of the New Testament in Greek.

Its presence of pagination 47-50 means that Hebrews was preceded by only one book in the original scroll, likely the Epistle to the Romans as in Papyrus 46.

[5] It has errors of itacism (ι and ει, ε and αι, υ and οι).

[2] It bears strong textual affinity with Codex Vaticanus, and also has an 80% agreement with Papyrus 46.

[2] Papyrus 13 is written recto-verso, with the verso (back) containing Hebrews and the recto (front) containing part of Livy's History of Rome, dated to around 200 AD.