马奈（法语：Manhay）是位于比利时卢森堡省的一座城市，人口3,195人（2006年）。

Manhay is a Walloon municipality of Belgium located in the province of Luxembourg. On 1 January 2007 the municipality, which covers 119.81 km², had 3,185 inhabitants, giving a population density of 26.6 inhabitants per km².

The municipality consists of the following sub-municipalities: Dochamps, Grandmenil, Harre, Malempré, Odeigne, and Vaux-Chavanne.