Gravelines (/ɡrævˈliːn/ grav-LEEN, French: [ɡʁavlin]; Dutch: Grevelingen [ˈɣreːvəlɪŋə(n)]) is a commune in the Nord department in Northern France.

Silting gradually cut it off from the North Sea, resulting in the construction of a canal to the new coast at what is now Gravelines.

[5] There was a famous meeting at Gravelines in 1520, between the Holy Roman Emperor Charles V and Henry VIII of England.

There were two battles fought nearby: the first was a land battle in 1558 resulting in a victory by Spanish forces of Lamoral, Count of Egmont over the French under Marshal Paul des Thermes, while the second was a naval attack using fire ships in 1588 launched by England's Royal Navy under Lord Howard against the Spanish Armada at anchor.

On 24 May 1940, during the Fall of France, German field marshal Gerd von Rundstedt, commanding Army Group A, ordered his armoured divisions to close up the "Canal Line" of Lens-Gravelines, and halt there.