Vieux-Port de La Rochelle, Medieval port in La Rochelle, France.

Vieux-Port de La Rochelle is a marina of about 320 berths made up of three inner harbours: the dry dock with 4 quays and 115 berths, the former fishing harbour receiving vessels 17 to 90 metres long, and the yacht harbour with 5 quays and 90 berths. The channel is dredged from the Richelieu tower, and the Marans canal ends here. The entrance is guarded by the Saint-Nicolas and Chain towers.

The port was established in medieval times and gained its characteristic defense towers in the 14th century, which played a defensive role during the siege of 1628. These towers still stand today and shape the port's appearance.

The port's name, Vieux-Port, distinguishes it from the modern Minimes marina at the channel entrance. Its quays are lined with cafés, restaurants, shops and museums, and the harbour is a centre of international maritime tourism. The Saint-Nicolas tower, the Chain tower, the Lantern tower and the Grosse Horloge were listed with the port as a protected site by decree of 25 July 1933.

The Old Port is split into three inner basins: the dry dock with 4 quays and 115 berths, the former fishing harbour taking vessels up to 90 m long, and the yacht basin with 90 berths and a 1 m sill at its entrance. The main channel is dredged from the Richelieu tower onwards, and the Marans canal ends here. Quays are walkable and give close views of the moored boats and the towers.

The Lantern Tower at the harbor entrance served for centuries as a lighthouse for ships but also held a completely different purpose as a prison. This dual history makes the structure one of the port's most intriguing monuments.