INSA may refer to:
INSA (Germany), a German poll institute Indian National Science Academy, a national science academy based in Delhi Information Network Security Agency, the Ethiopian intelligence agency that is run by the Ministry of Peace Institut national des sciences appliquées, National Institute of Applied Sciences in France Instituto Nacional de Saúde Dr. Ricardo Jorge, the National Health Institute of Portugal Intelligence and National Security Alliance, an alliance of intelligence business interests Israeli Nano Satellite Association INSA, a mixtape made in 2014 by MellowHype