Fonderia Ferdinandea, Industrial foundry complex in Calabria, Italy.

Fonderia Ferdinandea is a former iron foundry complex covering 15,000 square metres in the Serre area of Calabria. It comprised four foundry buildings, a blast furnace, an administrative residence, prisons, soldiers' quarters and a church. Today only two foundry buildings and the administrative residence remain, the latter with a cast-iron shrine and a granite bust of Ferdinand II.

Work on the foundry began in 1814 under Ferdinand I of the Two Sicilies to replace the outdated Regia Fonderia di Stilo, but repeated suspensions delayed completion until 1833, when Ferdinand II inaugurated it on 23 April. The project, based on a 1736 plan by engineer Giuseppe Stendardo and led by Teodoro Paolotti, cost 400,000 ducats. In 1852 Ferdinand II financed a restoration with 5,000 ducats.

The site belongs to the Ecomuseo delle ferriere e fonderie di Calabria, which links the foundry to the ironworks along the Stilaro river and the Ruggero, Acciarello and Mulinelle streams. Near the remaining administrative residence stand a cast-iron shrine and a granite bust of Ferdinand II, who inaugurated the complex on 23 April 1833.

The complex lies in the Piani della Chiesa Vecchia area, now the Ferdinandea locality, in the Serre hills inland from the Ionian coast; the nearest reference towns are Stilo and Pazzano. Only two foundry buildings and the administrative residence survive, and as of October 2024 they were still awaiting restoration, so expect abandoned, overgrown ground rather than a laid-out visitor route. Sturdy shoes are advisable.

The blast furnace produced 6,860 quintals of cast iron a year, and the complex saved about 30% on costs compared with the Mongiana foundry, largely because the Pazzano ore mines lay closer to Ferdinandea. The 1814 start was funded with 14,000 ducats during French rule.