马库斯·奥勒留·瓦勒里乌斯·马克西米安努斯·赫库里乌斯（Marcus Aurelius Valerius Maximianus Herculius，3世纪约250年－310年约7月），通称马克西米安（Maximian），罗马皇帝。

285年任罗马帝国副帝，286年被戴克里先任命为同朝皇帝，统治帝国西部，305年5月1日与戴克里先一同退位，由其副手君士坦提乌斯一世接任。君士坦提乌斯一世不久去世，而东部的皇帝伽列里乌斯指定塞维鲁二世出任西部的皇帝，君士坦提乌斯一世的儿子君士坦丁一世在不列颠起兵，马克西米安也于306年复出，支持其子马克森提乌斯的在罗马继位，反对并打败并杀死塞维鲁二世，后来他与自己儿子夺权马克森提未果，被迫逃往女婿君士坦丁一世处寻求庇护，于308年再次放弃对罗马皇位。310年，他趁君士坦丁一世出兵在外时发动叛变，但应者寥寥，很快被回师的君士坦丁一世包围于马赛。同年夏，马克西米安被迫自杀。

Maximian (Latin:Marcus Aurelius Valerius Maximianus Herculius Augustus; c. 250 – c. July 310) was Roman Emperor from 286 to 305. He was Caesar from 285 to 286, then Augustus from 286 to 305. He shared the latter title with his co-emperor and superior, Diocletian, whose political brain complemented Maximian's military brawn. Maximian established his residence at Trier but spent most of his time on campaign. In the late summer of 285, he suppressed rebels in Gaul known as the Bagaudae. From 285 to 288, he fought against Germanic tribes along the Rhine frontier. Together with Diocletian, he launched a scorched earth campaign deep into Alamannic territory in 288, temporarily relieving the Rhine provinces from the threat of Germanic invasion.