The île de Nantes (French pronunciation: [il də nɑ̃t], Island of Nantes) is an island located in the centre of the city of Nantes, France, surrounded by two branches of the river Loire—the "bras de la Madeleine" (branch of the Madeleine) at the north and the "bras de Pirmil" (branch of Pirmil) at the south. It is one of the eleven neighbourhoods of Nantes.

The island is 4.9 km (3.0 mi) long and 1 km (0.6 mi) wide due to joining together former small islands in the centre of Nantes, separated by the branches of the Loire river (sometimes referred to locally as the "Boires", as in "Boire des Récollets, "boire de Toussaint" and "boire de la Biesse"). The branches (intervening channels) were filled in during the 19th and 20th centuries. Chiefly these islands were the "île Beaulieu", "île Sainte-Anne", "île de Petite Biesse" and the "île de Grande Biesse" the more water meadow-like "prairie au Duc", "prairie d'Aval", "prairie d'Amont", "prairie de Balagué", "prairie de Pré-Joli".^[1] It is one of the most developed and well-conserved parts of the city while featuring modern buildings such as its major basketball and indoor sports venue. Many trees and flowers are on the island, which in part helped the city to be recognized as European Green Capital in 2013.^[2]

The "île de Nantes" is linked to the rest of the city by 13 bridges:

• 8 bridges cross the branch of the Madeleine:
  • Éric Tabarly bridge
  • Résal bridge (railway bridge)
  • Willy Brandt's bridge
  • Aristide Briand bridge
  • Général Audibert bridge
  • Haudaudine bridge
  • Passerelle Victor Schoelcher (pedestrian bridge)
  • Anne-de-Bretagne bridge
• 5 bridges cross the branch of Pirmil:
  • Léopold Sédar Senghor bridge
  • Georges Clemenceau bridge
  • Pirmil bridge
  • Pornic bridge (railway bridge with a bicycle track)
  • Trois continents bridge

The Vendée's bridge is a railway bridge, which crosses the island, but there is no railway station on the island.

• Machines of the Isle of Nantes
• Court of justice of Nantes
• Titan cranes
• Blockhaus DY10
• The Palais des Sports de Beaulieu
• Buren's rings
• The hangar à bananes (bananas facility)