Unica

Unica may refer to:
 * Unica (material), a vulcanised lump paper material
 * Unica (La India album), 2010
 * Unica (Ornella Vanoni album), 2021
 * Unica (river), a karst river of Slovenia
 * Unica Corporation, a manufacturer of enterprise marketing management software
 * Mateba Model 6 Unica or Mateba Autorevolver, a semiautomatic revolver developed by Mateba
 * Unica Zürn (1916–1970), German author and artist
 * Unica (typeface)
 * Abbas Ali Atwi, also known as Unica, a Lebanese football player