The Isle of Oléron or Oléron Island (French: île d'Oléron, [il dɔleʁɔ̃]; Saintongese: ilâte d'Olerun; Latin: Uliaros insula, [uliˈaːros ˈinsula]) is an island off the Atlantic coast of France (due west of Rochefort), on the southern side of the Pertuis d'Antioche strait.

Oleron has been known since the 1st century, where Pliny the Elder refers to it in his Natural History as Uliaros ("in aquitanico sinu Vliaros").

[1] Towards the end of the 3rd century, the Roman emperor Probus extended the privilege of owning vineyards and producing wine to all Gauls, and this led to a culture of winemaking developing on the island.

[4] Vaceti was another name for the Vascones, the reference is seen evidence of Basque (Gascon) control of the islands by that time.

The French cruiser Duquesne fired 550 heavy shells at the German artillery batteries, and the garrison surrendered on the following day.

The climate is generally mild (maritime temperate) with sufficient but not excessive rainfall, but with probably from 3 to 15 days of intense heat in the summer months of July and August, mostly grouped.

As a large Atlantic island only 3 kilometres (1.9 miles) off the Aquitanian coast of France, Oléron is a popular tourist destination.

Several companies operate boat trips from the towns of Boyardville and Saint-Denis to the nearby Île d'Aix, La Rochelle, and past the Fort Boyard.