Ely or ELY may refer to:

• Ely, Cambridgeshire, a cathedral city in Cambridgeshire, England
  • Ely Rural District, a former district surrounding Ely, Cambridgeshire on the west and north
  • Isle of Ely, a historic region and former county around the city of Ely
  • Diocese of Ely, a Church of England diocese in the Province of Canterbury
• Ely Place, a road in London

• Éile, a medieval kingdom commonly anglicised Ely
• Ely Place, Dublin, a street

• Ely, Cardiff, a suburb of west Cardiff, Wales
  • Ely (Cardiff electoral ward)
• River Ely, a river in Wales that flows through Cardiff

• Ely, Iowa, a city
• Ely, Minnesota, a city
• Ely, Missouri, an unincorporated community
• Ely, Nevada, a city and county seat
• Ely, New Jersey, an unincorporated community
• Ely, Virginia, an unincorporated community
• Ely Township, Michigan
• Ely, a village belonging to Fairlee, Vermont
• Ely Range, a mountain range in Nevada

• El Al, Israeli airline (ICAO code: ELY)
• Ely Airport, also known as Yelland Field, IATA code ELY
• Ely railway station, an English railway station that has National Rail code ELY
• Elyria (Amtrak station), an Ohio rail station, which has Amtrak station code ELY
• Callaway Golf, a company that has New York Stock Exchange code ELY

• Ely Professor of Divinity, a professorship at the University of Cambridge
• Ely College, Ely, Cambridgeshire, United Kingdom
• King's Ely, Ely, Cambridgeshire, United Kingdom
• Ely Theological College, Ely, Cambridgeshire
• Ely High School for Girls, Ely, Cambridgeshire
• Ely Hall, Vassar College, Poughkeepsie, New York, United States
• Ely Memorial High School, Ely, Minnesota, United States

• Ely (surname), a list of people
• Ely (given name), a list of people

• USS Ely, the name of more than one United States Navy ship
• Marquess of Ely, an extant title in the Peerage of Ireland
• Earl of Ely, three extinct titles in the Peerage of Ireland
• Ely House (disambiguation)
• Ely Racecourse, a racecourse in Cardiff, Wales

• Liber Eliensis (sometimes titled Book of Ely), a 12th-century English chronicle and history
• Eli (disambiguation)
• Elie
• Eley (disambiguation)
• Ili (disambiguation)