Codex Campianus is a Greek uncial manuscript of the New Testament Gospels, written on parchment. It is designated as "M" or "021" in the Gregory-Aland numbering of New Testament manuscripts, and ε 72
Folio 91 recto, beginning of Mark. The right-hand margin contains a liturgical note: κυριακή προ των φώτων, "on Sunday before Epiphany"