Cornhill can refer to:
- Cornhill, Aberdeen
- Cornhill, Aberdeenshire
- Cornhill, London, a street and ward in the City of London
- Cornhill Magazine, literary publication in print until 1975
- Cornhill-on-Tweed, Northumberland
- Cornhill Insurance, a United Kingdom insurance company owned by Allianz
- Royal Cornhill Hospital, Aberdeen