Paeonia

Paeonia or Paionia may refer to:


 * The genus Paeonia, which comprises all peony plants
 * Paeonia (kingdom), an ancient state occupying roughly the same area as the present-day Republic of North Macedonia
 * Paionia (municipality), in the Central Macedonia region of Greece
 * Paeonia, alternate name of Paeonidae, a deme of ancient Attica
 * 1061 Paeonia, an asteroid