Uncial 0101 (in the Gregory-Aland numbering), ε 48 (Soden), is a Greek uncial manuscript of the New Testament. It is dated palaeographically to the 8th-century.^[1] Formerly it was labelled by T^V.^[2] The manuscript has survived in very fragmentary condition.

The codex contains a small part of the Gospel of John 1:29-32, on one very small parchment leaf (11 cm by 9 cm). The text is written in one column per page, 14 lines per page, in uncial letters.^[1]

The nomina sacra are written in an abbreviated forms.

The Greek text of this codex is a representative of the Alexandrian text-type. Aland placed it in Category II.^[1]

Currently it is dated by the INTF to the 8th-century.^[1][3]

The codex currently is located at the Austrian National Library (Pap. G. 39780), at Vienna.^[1]

Karl Wessely published its text (facsimile).^[2] It was examined by C. R. Gregory (1887) and David C. Parker (2007). In 2008 it was edited by Stanley E. Porter and Wendy J. Porter (facsimile with transcription).^[4]

• List of New Testament uncials
• Textual criticism