Mille-Îles (meaning "Thousand Islands") can refer to:

• Éditions Mille-Îles, a Quebec publisher of comic books
• Mille-Îles, provincial electoral district in Laval, Quebec, Canada
• Mille-Isles, Quebec, municipality in Quebec
• Rivière des Mille Îles, a channel in Quebec, Canada
• Rivière-des-Mille-Îles (electoral district), federal electoral district in Quebec, Canada
• Thousand Islands (disambiguation), one of several places with this name

• Ategumia fatualis
• Ategumia matutinalis
• Atehtmia schleppniki
• ATEI
• Ateia (gens)
• ATEI (disambiguation)
• Ateism
• Ateji PX
• Ateker
• Ateker people
• Atel
• Atelchu River
• Atelea Vea
• Atelecyclidae
• Atelecyclus heterodon
• Ateleia (ancient Greece)
• Ateleia (disambiguation)
• Ateleia (exemption)
• Ateleia (musician)
• Atelektasis
• Ateleodon
• Ateleomorpha
• Ateleopodidae
• Ateleopus
• Ateles fusciceps fusciceps