Longitude is a geographic coordinate that specifies the east–west position of a point on the Earth's surface, or the surface of a celestial body.

Longitude may also refer to:

• Longitude rewards, a British inducement prize for a solution to the longitude problem
  • Longitude, a book by Dava Sobel about John Harrison
  • Longitude, a 2000 TV drama produced from the book
• Longitude Prize, an inducement prize contest inspired from the longitude rewards
• Cessna Citation Longitude, a business jet
• Longitude Festival, an annual music festival in Dublin, Ireland
• Longitude LLC, a private business in para-mutual betting technology

This disambiguation page lists articles associated with the title Longitude.
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