A chimney is a conduit for exhausting combustion gases up into open air.

Chimney or Chimneys may also refer to:

• Chimney (sculpture), outside Riley Hospital for Children, Indianapolis
• Chimneys (play) by Agatha Christie
• Chimneys novels, two light-hearted thrillers by Agatha Christie

• Chimney swift (Chaetura pelagica)
• Chimney crayfish (Cambarus diogenes)
• Chimney bellflower (Campanula pyramidalis)

• Chimney (locomotive), specifically for chimneys fitted to railway locomotives
• Funnel (ship), chimney or smokestack on a ship
• Chimney, Oxfordshire, hamlet in England
• Fairy chimney, tall thin rock formation
• Methane chimney, underground gas buildup
• Solar chimney, method of heating a building using passive solar energy

• Chimney Corner (disambiguation)
• Chimney Peak (disambiguation)
• Chimney Rock (disambiguation)
• Chimneying, a rock-climbing technique
• All pages with titles containing Chimney