Blue Mountains

Blue Mountains may refer to:

Geography

 * Blue Mountains (New South Wales), Australia
 * City of Blue Mountains, a local government area west of Sydney
 * Blue Mountains railway line
 * Electoral district of Blue Mountains
 * Greater Blue Mountains Area, a World Heritage Site
 * Blue Mountains (Nunavut), Canada
 * The Blue Mountains, Ontario, a town in Canada
 * Blue Mountains (Congo), northwest of Lake Albert
 * Sinimäed Hills (Blue Mountains) in Estonia, near Narva
 * Nilgiri mountains (Blue Mountains), southern India
 * Blue Mountains (Jamaica)
 * Blue Mountains (New Zealand), in West Otago
 * Blue Mountains (Niger), a mountain range near the Aïr Mountains in Niger
 * Blue Mountains (Pacific Northwest), United States
 * Blue Mountains (ecoregion), a Level III ecoregion
 * Blue Mountains or Abajo Mountains, Utah, United States

Fictional

 * The Blue Mountains (Elgar), a song about Australia by Sir Edward Elgar to a poem by Alfred Noyes
 * The Blue Mountains (fairy tale), a fairy tale by Andrew Lang in The Yellow Fairy Book
 * Blue Mountains (Middle-earth) or Ered Luin, fictional mountains in Tolkien's Middle-earth