Codex Borgianus, designated by T or 029 (in the Gregory-Aland numbering), ε 5 (von Soden), is a Greek and Sahidic uncial manuscript of the Gospels, dated palaeographically to the 5th century.

[4] The Alexandrian text of the Gospel of John stands in close relationship to the Codex Vaticanus, and P75.

"It appears that the ignorant monk who brought this manuscript with him from Egypt to Europe, was so unaware of its value, that he lost the greater part of the leaves".

Vehementer sane dolendum, particulam tam exiguam eximini codicis servatam esse, ex quo, si integrum aetas tulisset, plurima ad textus emendationem peti potuissent.

A few leaves from Uncial 070, formerly designated by Ta, were wrongly listed by Tregelles as a part of the same codex to which Borgianus belonged.

The codex is located at the Vatican Library (Borgia Coptic 109), in New York City (Pierpont Morgan M 664A), and in Paris (BnF Copt.