XII

XII may refer to:
 * 12 (number) or XII in Roman numerals
 * 12th century or XII in Roman numerals
 * XII (Neal McCoy album), 2012
 * XII (Brian Culbertson album), 2010
 * XII (single), a 2019 single album by K-pop singer Chungha, featuring the song "Gotta Go"
 * hypoglossal nerve (XII), twelfth cranial nerve
 * The Big 12 Conference, a U.S. college athletic conference whose logo consists of a stylized "XII"