The siege of Groningen was a two-month siege which commenced on 19 May 1594, and which took place during the Eighty Years' War and the Anglo-Spanish War. The Spanish-held city of Groningen was besieged by a Dutch and English army led by Prince Maurice of Orange. The Spanish surrendered the city on 22 July, after a failed relief attempt by the Count of Fuentes.

The Anglo-Spanish War (1585–1604) was an intermittent conflict between the Habsburg Kingdom of Spain and the Kingdom of England that was never formally declared. It began with England's military expedition in 1585 to what was then the Spanish Netherlands under the command of the Earl of Leicester, in support of the Dutch rebellion against Spanish Habsburg rule.