The following table lists the names of Breton communities which have concluded town twinning agreements with communities in Cornwall:
| Cornwall | Brittany | |||
|---|---|---|---|---|
| Falmouth | Aberfal | Douarnenez | Douarnenez | |
| Bodmin | Bosvena | Le Relecq-Kerhuon | Ar Releg-Kerhuon | |
| St Buryan | Eglosveryan | Calan | Kalann | |
| Saltash | Essa | Plougastel-Daoulas | Plougastell-Daoulaz | |
| Millbrook | Govermelin | Plouider | Plouider | |
| Hayle | Heyl | Pordic | Porzhig | |
| Helston | Hellys | Pleumeur-Bodou | Pleuveur-Bodoù | |
| Calstock | Kalstok | Saint-Thuriau | Sant-Turiav | |
| Camborne | Kammbronn | Sainte-Anne-d'Auray | Santez-Anna-Wened | |
| Callington | Kelliwik | Guipavas | Gwipavaz | |
| St Germans | Lannaled | Plouguerneau | Plougerne | |
| Feock | Lannfyek | Hôpital-Camfrout | An Ospital | |
| Crantock | Lanngorrow | Carantec | Karanteg | |
| Constantine | Lanngostentin | Pont-Croix | Pontekroaz | |
| Launceston | Lannstevan | Plestin-les-Grèves | Plistin | |
| St Erth | Lannudhno | Ploulec'h | Ploulec'h | |
| St Just in Penwith | Lannust | Huelgoat | An Uhelgoad | |
| Mabe | Lannvab | Primelin | Prevel | |
| Looe | Logh | Quiberon | Kiberen | |
| Lostwydhyel | Pleyber-Christ | Pleiber-Krist | ||
| Lysardh | Landévennec | Landevenneg | ||
| Liskeard | Lyskerrys | Quimperlé | Kemperle | |
| Penryn | Pennrynn | Audierne | Gwaien | |
| Penzance | Pennsans | Concarneau | Konk-Kerne | |
| Torpoint | Penntorr | Bénodet | Benoded | |
| Wadebridge | Ponswad | Langueux | Langaeg | |
| St. Ives | Porth Ia | Camaret | Kameled | |
| Porthbud | Ergué-Gabéric | An Erge-Vras | ||
| Porthbugh | Porspoder | Porspoder | ||
| Porthleven | Guissény | Gwiseni | ||
| Redruth | Resrudh | Plumergat | Pluvergad | |
| Meriasek | Meriadeg | |||
| St Neot | St Neot | Malgeneg | ||
| Stithians | Stedhyan | Pleurdud | ||
| Storuay or Newquay | Tewynblustri | Dinarzh | ||
| Truro | Truru | Morlaix | Montroulez | |