Alnwick is a town in Northumberland, England.

Alnwick may also refer to:

• Alnwick District, a former district in Northumberland, England
• Alnwick/Haldimand, Ontario, a township in Canada
• Alnwick Parish, New Brunswick, Canada
  • Alnwick, New Brunswick, a rural community in Alnwick Parish

• Alnwick (surname)

• Alnwick Castle
  • The Alnwick Garden
• Battle of Alnwick (disambiguation)
• Annick (disambiguation)
• Anick, a village in Northumberland.