Gediz may refer to:

• Gediz, Kütahya, a district of the Kütahya Province of Turkey
• Gediz River, a river in the Aegean region of Turkey

• Sundown Saunders
• Sundown Schoolhouse
• Sundown (S Club 8 song)
• Sundown (song)
• Sundown syndrome
• Sundown: The Future of Children and Drugs
• Sundown Town
• Sundown Township, Minnesota
• Sundown (video game)
• Sundoya
• Sundoya Bridge
• Sundoy Bridge
• Sundoybrua
• Sundram Iyengar
• Sundraraman Ramanan
• Sundrawati
• Sundream Motion Pictures
• Sundress (Hum song)
• Sundridge, Bromley
• Sundridge (disambiguation)
• Sundridge, London
• Sundridge Park
• Sun-dried tomato
• Sundried tomatoes
• Sundries (disambiguation)