Aywaille (French pronunciation: [ɛwaj]; Walloon: Aiwêye) is a municipality of Wallonia located in the province of Liège, Belgium.

The total area is 80.04 km2 which gives a population density of 146 inhabitants per km2.

[3] The inhabitants of Aywaille are called the "Aqualiens", from the Latin version of Aywaille "Aqualia loca", which means "area full of water" or "muddy land".

[3] The municipality consists of the following districts: Aywaille, Ernonheid, Harzé, and Sougné-Remouchamps.

They include many villages as Aywaille, Awan, Chambralles, Deigné, Ernonheid, Paradis, Houssonloge, Pouhon, Harzé, Havelange, Kin, Stoqueu, Martinrive, Nonceveux, Playe, Quarreux, Sedoz, Septroux, Sougné, Remouchamps, Ville-au-Bois.