山南高卢（Cisalpine Gaul，拉丁文：Gallia Cisalpina或称内高卢与山内高卢）是指古罗马时代阿尔卑斯山和亚平宁山脉之间的、由塞尔特侵略者居住的意大利北部地区。其「山南」的「山」指的就是阿尔卑斯山。山南高卢人是住在山南高卢的塞尔特人（高卢人），曾攻打罗马，但罗马最后撃败高卢人。

与山内高卢对应的是山北高卢（亦称外高卢或山外高卢），指的是阿尔卑斯山以北，现今法国、比利时、荷兰与卢森堡等地，是另一群塞尔特人（高卢人）居住之地。

Cisalpine Gaul (Gallia Cisalpina), also called Gallia Citerior or Gallia Togata, was the part of Italy inhabited by Celts since the 13th century BC. Conquered by the Roman Republic in the 220s BC, it was a Roman province from c. 81 BC until 42 BC, when it was merged into Roman Italy. Until that time, it was considered part of Gaul, precisely that part of Gaul on the "hither side of the Alps" (from the perspective of the Romans), as opposed to Transalpine Gaul ("on the far side of the Alps").