Lannion (French pronunciation: [lanjɔ̃] ⓘ ; Breton: Lannuon) is a commune in the Côtes-d'Armor department in Brittany in northwestern France.

The old neighborhood contains old squares, a church called Brélévenez, half-timbered houses, chapels and frescoes.

[6] Lannion is a large telecommunications research center in France with several firms such as Nokia, Orange and SAGEMCOM operating there.

The nearby Lannion – Côte de Granit Airport can accommodate larger flights arriving from Paris and other French destinations.

There is a bus service connecting the town centre to surrounding areas, TILT (Transports Intercommunaux de Lannion-Trégor), with six lines.