Diego Suarez or Diego-Suarez may refer to:

• Antsiranana, a city in Madagascar formerly known as Diego-Suarez
• Diego Suarez (navigator) or Diogo Soares, 16th-century Portuguese navigator and explorer
• Diego Suárez (soldier) (1552–1623), Spanish soldier and chronicler of the wars with the Moors
• Diego Suarez (garden designer) (1888–1974), Colombian-born American garden designer of the gardens at Villa Vizcaya
• Diego Orlando Suárez (born 1992), Bolivian footballer