阿卡迪亚造山运动（Acadian orogeny）是中古生代泥盆纪时期的构造运动，影响范围涉及阿巴拉契亚地槽（Appalachian Geosyncline）北段，包括今纽约至纽芬兰地区。它的肇因被认为是小型大陆板块阿瓦隆尼亚大陆（Avalonia）楔入古北美大陆劳伦西亚（Laurentia），造成了巨神海（Iapetus）部分的闭合和此次造山运动。

The Acadian orogeny is a long-lasting mountain building event which began in the Middle Devonian, reaching a climax in the early Late Devonian. It was active for approximately 50 million years, beginning roughly around 375 million years ago, with deformational, plutonic, and metamorphic events extending into the Early Mississippian. The Acadian orogeny is the third of the four orogenies that created the Appalachian orogen and subsequent basin. The preceding orogenies consisted of the Potomac and Taconic orogeny, which followed a rift/drift stage in the Late Neoproterozoic. The Acadian orogeny involved the collision of a series of Avalonian continental fragments with the Laurasian continent. Geographically, the Acadian orogen extended from the Canadian Maritime provinces migrating in a southwesterly direction toward Alabama. However, the Northern Appalachian region, from New England northeastern ward into Gaspé region of Canada, was the most greatly affected region by the collision.