Creuddyn

Creuddyn may refer to:
 * The Creuddyn Peninsula, in Conwy county borough
 * Creuddyn, Ceredigion, a historic commote of Ceredigion
 * Creuddyn, Rhos, a historic commote of Cantref Rhos
 * Llanfihangel y Creuddyn, a village and parish in Ceredigion
 * Ysgol y Creuddyn, a secondary school in Penrhyn Bay