Plica

Plica may refer to:
 * Plica (lizard), a genus of lizards
 * Capillaria plica, a parasitic nematode
 * Plica (sigillography) - term from sigillography
 * A fold or crease, especially of skin or other tissue, from medieval Latin plicare ("to fold")
 * Plica fimbriata: Fimbriated fold of tongue
 * Plica semilunaris of the conjunctiva
 * Plica semilunaris of the fauces
 * Plica syndrome of the knee
 * Plica circularis, also called circular fold, of the small intestine
 * The hair disease Plica polonica: Polish plait
 * In early music notation, a note indicated in a ligature