The Riga Civil Aviation Engineers Institute (RCAEI) (Latvian: Rīgas Civilās Aviācijas Inženieru Institūts (RCAII), Russian: Рижский институт инженеров гражданской авиации (РКИИГА until 1991), Рижский авиационный университет (РАУ until 1999)) was an engineering university in the USSR and Latvia.

From Kiev the school had been evacuated to Moscow and in 1921 it was shifted to Petrograd and renamed as the Advanced Training Courses for Engineering Staff.

In 1938–39 a status of this educational establishment was changing according to the prevailing number of students and listeners raising the level of their skills.

On 25 February 1992, the RIIGA passed under the jurisdiction of the Latvian Republic and changed its name to the Riga Aviation University.

To its 80th anniversary the RAU was the largest higher school in Latvia occupying the third line in the rating of the educational establishments in the country.

The staff of these institutes is doing a great deal to preserve, continue and multiply the tradition of this legendary aviation academy.