ALSA or alsa can refer to: Advanced Linux Sound Architecture, a Linux kernel component Air Land Sea Application Center, an organization of the United States Department of Defense responsible for developing tactics and procedures Airline Stewardess Association, a trade union ALS Association, an American non-profit organization dealing with amyotrophic lateral sclerosis (ALS) or Lou Gehrig's disease ALSA (bus company), a bus company based in Spain Australian Law Students' Association, an Australian law student organisation An alternative name for harees, a Mappila dish in Kerala, south India , a brand of baking and dessert mixes in France es:ALSA