Gaya may refer to:

• Kyjov, a town called Gaya in German and Latin

• Gaya or Gayah, a town

• Gaya, India, a city in Bihar
  • Gaya Airport
• Bodh Gaya, a town in Bihar near Gaya
• Gaya district, Bihar

• Gaya, Niger, a city in the Dosso region
• Gaya Department, a department of the Dosso Region

• Gaya, Nigeria, a city in Kano State

• Pulau Gaya (Gaya Island), a sizeable Malaysian island near the coast of Sabah

• Gaya confederacy, an ancient league of statelets on the Korean peninsula
  • Geumgwan Gaya, the ruling city-state of the Gaya confederacy during the Three Kingdoms period
• Gaya Line, a railway line serving Busan
• Gayasan National Park, a national park in South Gyeongsang

• Gayá River

• Gaya Herrington (born 1981), Dutch econometricist, sustainability researcher and activist

• Eiji Gaya (born 1969), Japanese football player
• Kabiru Ibrahim Gaya (born 1952), Nigerian politician and architect
• Ramón Gaya (1910–2005), Spanish artist
• José Luis Gayà (born 1995), Spanish footballer
• Juan Antonio Gaya Nuño (1913–1976) was a Spanish art historian, author, teacher, and art critic.

• Gaya (plant), a genus of plants in the family Malvaceae
• Gaya Quartet, an Azerbaijani singing group
• Gaya language, the language of the Korean Gaya confederacy
• Gaya (Seediq), law of the Seediq people
• Gaya melon, a honeydew melon cultivar

• Gaia (disambiguation)
• Gaja (disambiguation)