ISAS
The abbreviation ISAS stands for:
- Institute for Spectrochemistry and Applied Spectroscopy , a non-university research facility based in Dortmund and a branch in Berlin-Adlershof, today Leibniz Institute for Analytical Sciences
- Institute of Space and Astronautical Science , a Japanese institute for space research
- Interest group of South Tyrolean trainees and students in Munich, association that supports students and trainees from South Tyrol in Germany