The Asa (Aasá) language, commonly rendered Aasax (also rendered as Aasá, Aasáx, Aramanik, Asak, Asax, Assa, Asá[3]), is an extinct Afroasiatic language formerly spoken by the Asa people of Tanzania.

The language is extinct; ethnic Assa in northern Tanzania remember only a few words they overheard their elders use, and none ever used it themselves.

However, it might have retained a non-Cushitic layer from an earlier language shift.

The Aramanik (Laramanik) people once spoke Asa, but shifted to Nandi (as opposed to Maasai).

Asa is known from three primary sources: two vocabulary lists from 1904 and 1928, and a collection by W. C. Winter from 1974.