阿利根尼造山幕（Alleghenian Orogeny）是3.5亿年前至3.0亿年前，古生代晚期石炭纪的一次北美大陆东部的造山运动，产生了阿巴拉契亚山脉(即蓝岭山脉)及西南部平行的阿勒格尼山脉-坎伯兰山脉。这次运动产生了褶皱和断层，以及岩石的变质。它被认为是晚古生代时期形成盘古大陆的过程中，冈瓦纳古陆的非洲部分碰撞劳亚古陆的北美洲部分造成的。

这场造山运动形成的山脉的高度堪比喜马拉雅山脉。随后数亿年的侵蚀过程形成了如今的阿巴拉契亚山系。

The Alleghanian orogeny or Appalachian orogeny is one of the geological mountain-forming events that formed the Appalachian Mountains and Allegheny Mountains. The term and spelling Alleghany orogeny was originally proposed by H.P. Woodward in 1957.

The Alleghanian orogeny occurred approximately 325 million to 260 million years ago over at least five deformation events in the Carboniferous to Permian period. The orogeny was caused by Africa colliding with North America. At the time, these continents did not exist in their current forms: North America was part of the Euramerica super-continent, while Africa was part of Gondwana. This collision formed the super-continent Pangaea, which contained all major continental land masses. The collision provoked the orogeny: it exerted massive stress on what is today the Eastern Seaboard of North America, forming a wide and high mountain chain. Evidence for the Alleghanian orogeny stretches for many hundreds of miles on the surface from Alabama to New Jersey and can be traced further subsurface to the southwest. In the north, the Alleghanian deformation extends northeast to Newfoundland. Subsequent erosion wore down the mountain chain and spread sediments both to the east and to the west.