Laas may refer to:
People Endel Laas (1915–2009), Estonian forest scientist and professor Ernst Laas (1837–1885), German philosopher Hendrik Laas (1862–1919), Estonian agriculturalist and publisher Karl Laas (actor) (1892–after 1944), Estonian actor Karl Laas (runner) (1908–1967), Estonian long-distance runner Mait Laas (born 1970), Estonian animated film director Valdek Laas (1949–1999), Estonian serial killer and serial rapist
Places France Laas, Gers Laas, Loiret Laàs, in the Pyrénées-Atlantiques département
Elsewhere Laas (Greece), a city of ancient Laconia Laas, South Tyrol, a municipality in South Tyrol, Italy
Acronym Laboratory for Analysis and Architecture of Systems, a research laboratory linked with the French National Centre for Scientific Research Local-area augmentation system, an aircraft landing system Lighting as a service (LaaS) Logging as a service (LaaS)