The Morini (Gaulish: 'sea folk, sailors') were a Belgic coastal tribe dwelling in the modern Pas de Calais region, around present-day Boulogne-sur-Mer, during the Iron Age and the Roman period.
[11][12] The Morini lived south of the Menapii, the river Aa bordering the two tribes from the coast to the east of Saint Omer.
[13] Strabo (early 1st c. AD) describes the country of the Morini as being on the sea, close to the Menapii, and covered by part of a large forest with low thorny trees and shrubs.
[15] In later imperial times, Boulogne was referred to as a civitas itself, implying either that it had supplanted Tervanna, possibly after a partial destruction in 275, or else that it had become administratively separate, perhaps because of its military and economic importance.
[18] In late classical times, Bononia became part of the coastal defence administration known as the "Saxon shore", and was probably administered separately from Tervanna.
[21] Edith Wightman reads Caesar to make a distinction between the core of the Belgae included the Suessiones, Viromandui and Ambiani, placing the Morini, Menapii, Nervii, and other northern tribes in a "transition zone" which may have been more Germanic.
[29] The Morini participated together with other coastal people (Lexovii, Namnetes, Ambiliati, Diablintes and Menapii) and tribes from Britain, in the uprising of the Veneti.
In 55 BC Labienus tightened the Roman grip upon the strategically more important western side of the Morini tribal areas.
[34] During the great Gallic rebellion led by Vercingetorix, the Morini, like many other Gaulish tribes, sent a contingent of some 5000 men to the relief force which had to liberate Alesia.
Thérouanne became the capital of a medieval diocese which included the old territories of the Morini and Atrebates, as well as part of the old Menapian civitas.