Manchán, Mainchín, Manchéne and a variety of other spellings may refer to:
Places
- Manaccan, south Cornwall, England, United Kingdom.
People
Saints
- Ireland
- Mainchín of Limerick (fl. late 6th century), son of Sétna, patron saint of Limerick. Feast day: 29 December.
- Manchán of Lemanaghan (d. 665), son of Sillán, patron of Liath Mancháin, now Lemanaghan, in County Offaly. Feast day: 20 or 24 January.
- Manchán of Min Droichit (d. 652), also Manchéne, scholar and abbot of Min Droichit (Co. Offaly). Feast day: 2 January.
- Mainchín of Corann, son of Collán. Feast day: 13 January.
- Manchán of Mohill, (d. 538), linked to Mohill, co. Leitrim and his Shrine. Feast day: 14 February
- Manchán of Athleague, (fl. 500), patron saint of Athleague, county Roscommon. Invoked against disease.
- Scotland
- St Machan, 12th century Scottish Saint.
- Wales
- Mawgan, Meugan, Meigant, (fl. 5th or 6th century), refers to one or two Brythonic saints of Cornwall/Brittany (Mawgan) and Wales (Meugan).
- Mannacus, 6th century, Caer Gybi (fort) in Wales.
First name
- Manchán Magan (1970–2025), Irish author, traveller, broadcaster and documentary maker