The Battle of Ronas Voe was a naval engagement between the English Royal Navy and the Dutch East India ship Wapen van Rotterdam on 14 March 1674 in Ronas Voe, Shetland as part of the Third Anglo-Dutch War. Having occurred 23 days after the signing of the Treaty of Westminster, it is likely to have been the final battle of the Third Anglo-Dutch War.

Shortly after embarking on a journey towards the Dutch East Indies with trade goods and a company of soldiers, extreme weather conditions caused Wapen van Rotterdam to lose its masts and rudder and it was forced to take shelter in Ronas Voe for a number of months. A whistleblower in Shetland informed the English authorities of the ship's presence, and in response three Royal Navy men-of-war and a dogger were dispatched to capture the ship. After a short battle, the ship was captured and taken back to England as a prize of war.

An unknown number of up to 300 of the ship's crew were killed in the battle and were buried nearby in Heylor. A modern memorial to the Dutch crew is erected where they are believed to be buried, bearing the inscription "The Hollanders' Graves".

Wapen van Rotterdam was an East Indiaman with a capacity of 1,124 tons and between 60 and 70 guns. On 16 December 1673, it departed the Texel bound for the Dutch East Indies with both trade goods and a company of soldiers from the Dutch East India Company's private army, along with an army captain. The ship itself was captained by Jacob Martens Cloet.

To avoid conflict with the English (with whom, due to the Third Anglo-Dutch War, the Dutch were at war), rather than passing through the English Channel, the ship was directed northwards where the plan would be to sail around the north of the British Isles (known as "going north about", which was commonly practised by Dutch East India ships at that time), before heading southwards again. Due to the extreme weather conditions in its journey northwards, the ship lost its masts and rudder, and southerly winds prevented the ship from being able to pass through either the Pentland Firth or the Fair Isle Channel, so the ship was (probably with considerable difficulty) taken into Ronas Voe in the north-west of Northmavine, Mainland, Shetland to shelter until the weather improved, and to allow the ship to be repaired. The voe (Shetland dialect for an inlet, firth or fjord) forms a crescent shape around Ronas Hill, which would have allowed the ship to lie sheltered regardless of the direction of the wind. A combination of prevailing southerly winds, and, presumably, a scarcity of suitable wood available in Shetland at that time to replace its masts prevented the ship from continuing its journey, and as such it remained in Ronas Voe until March 1674.

During their stay, the crew of the ship would have most likely traded Dutch goods such as Hollands gin and tobacco (and perhaps also goods on the ship originally destined for the Dutch East Indies) with the Shetlanders, in exchange for local foodstuffs available at that time, such as kale, meal and mutton – either fresh or reestit. The Shetlanders probably would have had quite a lot in common with the Dutch. The native language of the local Shetlanders at that time would have been Norn, though English would have been understood and used fluently by most. Many Shetlanders (of both the affluent and Commoners) were also fluent in Dutch, despite never having never left Shetland, due to the amount of trade done by Dutch ships in Shetland's ports.

From 1603, the Kingdoms of England, Ireland and Scotland had all shared the same monarch with the Union of the Crowns, who by 1674 was Charles II. As such, Scotland was actively involved in the Third Anglo-Dutch War, despite not being included in the conflict's name. Shetland, being a part of the Kingdom of Scotland, was therefore at war with the Dutch, however the local Shetland residents of Heylor and adjacent areas in direct contact with the Dutch may not have been aware of the conflict, and would not have considered the visitors as "enemies". A letter must have been sent by someone with an understanding of the political situation (most likely a laird, minister, merchant, or some other member of the gentry in Shetland) to inform the authorities of the Dutch ship's presence, and that it could not proceed due to it losing its masts and rudder. As a result, a total of four Royal Navy ships – HMS Cambridge, captained by Arthur Herbert (later the Earl of Torrington); HMS Newcastle, captained by John Wetwang (later Sir John Wetwang); HMS Crown, captained by Richard Carter; and a dogger (the Dove, captained by Abraham Hyatt) – were ordered to set sail for Shetland and to capture the ship.

Captain Herbert (Cambridge) was the first to receive his orders in a letter sent 21 February [O.S. 11 February] 1674 by the Royal Navy's Chief Secretary to the Admiralty Samuel Pepys. He stated the orders were "at the desire of the Royal Highness", and stressed that the orders were to be carried out swiftly, as the Treaty of Westminster concluding the war was expected to be published within eight days, and any subsequent hostilities were to last no longer than twelve days. The Treaty of Westminster had in fact been signed two days prior to this letter being sent, and was ratified in England the day before the letter was sent.