Zennor is a village and civil parish in Cornwall, England, United Kingdom. The parish includes the villages of Zennor, Boswednack and Porthmeor and the hamlet of Treen. Zennor lies on the north coast, about north of Penzance, along the B3306 road which connects St Ives to the A30 road. Alphabetically, the parish is the last in Britain. Its name comes from the Cornish name for the local saint, Saint Senara.