The Croatian Academy of Sciences and Arts (Latin: Academia Scientiarum et Artium Croatica, Croatian: Hrvatska akademija znanosti i umjetnosti, abbrev. HAZU) is the national academy of Croatia. Founded in 1866, it is the oldest national academy in Southeast Europe.

HAZU was founded under patronage of the Croatian bishop Josip Juraj Strossmayer under the name Yugoslav Academy of Sciences and Arts (Jugoslavenska akademija znanosti i umjetnosti, abbrev. JAZU) since its founder wanted to make it the central scientific and artistic institution of all South Slavs. Today, its main goals are encouraging and organizing scientific work, applying the achieved results, development of artistic and cultural activities, carrying about the Croatian cultural heritage and its affirmation in the world, publishing the results of scientific research and artistic creativity and giving suggestions and opinions for the advancement of science and art in areas of particular importance to Croatia.

The academy is divided into nine classes; social sciences, mathematical, physical and chemical sciences, natural sciences, medical sciences, philological sciences, Literature, Fine Arts, Musical Arts and Musicology, technical sciences. The Academy started in 1866 with 16 full members which grew to today's 160. Besides full, members can also be honorary, corresponding or associate.