亚尼修·玛理乌斯·塞味利诺·波爱修斯（拉丁语：Anicius Manlius Severinus Boëthius；Boëthius 读作英语发音：/boʊˈiːθi.əs/，也译作波伊提乌，480年－524或525年），六世纪早期罗马哲学家。

波爱修斯出生于罗马一个古老的名门望族Anicia家族，这个家族曾出现过罗马皇帝佩特罗尼乌斯·马克西穆斯和奥利布里乌斯以及多名罗马执政官。他的父亲Flavius Manlius Boethius在日耳曼人奥多亚塞废黜了最后一位罗马皇帝罗慕路斯·奥古斯都之后，于487年成为执政官。波爱修斯本人也很早就步入政坛，在他25岁时已成为了元老院成员。510年，波爱修斯在东哥德王国统治意大利时期成为执政官。522年，他的两个儿子也双双成为执政官。

Anicius Manlius Severinus Boëthius, commonly called Boethius (English: /boʊˈiːθiəs/; also Boetius /boʊˈiːʃəs/; c. 480–524 AD), was a Roman senator, consul, magister officiorum, and philosopher of the early 6th century. He was born four years after Odoacer deposed the last Roman Emperor and declared himself King of Italy, and entered public service under Ostrogothic King Theodoric the Great, who later imprisoned and executed him in 524 on charges of conspiracy to overthrow him. While jailed, Boethius composed his Consolation of Philosophy, a philosophical treatise on fortune, death, and other issues, which became one of the most popular and influential works of the Middle Ages.