Gaas or GAAS may refer to:
People Abdiweli Gaas, Somali politician Hans Gaas Mohamouda Ahmed Gaas, Ethiopian politician
Places Gaas, Landes, Nouvelle-Aquitaine, France
Other Gaelic Athletic Association Galeria de Artes Álvaro Santos, Brazilian art gallery founded in 1966 Gallium arsenide (GaAs), semiconductor Games as a service, revenue model for video games Generally Accepted Auditing Standards