Viareggio Diga Foranea Lighthouse (Italian: Faro di Viareggio diga foranea) is an active lighthouse, located at halfway the breakwater of the dock of Viareggio on the Ligurian Sea.

The lighthouse, built in 1993, consists of a concrete cylindrical tower, 32 metres (105 ft) high, painted white as the balcony and the lantern dome. On the south side of the tower are seven windows lined up in order to light the internal stairs, another window is that of the clock room.

The light is positioned at 30 metres (98 ft) above sea level and emits one white flash in a 5 seconds period, visible up to a distance of 24 nautical miles (44 km; 28 mi). The lighthouse is completely automated and managed by the Marina Militare with the identification code number 1868 E.F.

• List of lighthouses in Italy

• Servizio Fari Marina Militare