Cynan (also spelled Conan or Kenan) is a Welsh masculine given name. It may refer to:

• Cynan, the bardic name of Albert Evans-Jones (1895–1970), Welsh poet and dramatist

• Cynan ab Iago (11th century), prince of Gwynedd and father of Gruffydd ap Cynan

• Cynan ab Owain Gwynedd (), Lord of Meirionnydd, illegitimate son of Owain Gwynedd

• Cynan ap Hywel (), Prince of Gwynedd

• Cynan ap Maredudd (), Welsh nobleman

• Cynan Dindaethwy, king of Gwynedd

• Cynan Garwyn (), king of Powys

• Cynan Jones (born 1975), Welsh writer

• Cynan Nant Nyfer (9th century), Welsh warrior