ISR may refer to: Organizations. Institute for Strategy and Reconciliation. Institutional and Scientific Relations, of the European Commission. International Star Registry, a company selling the right to name stars. ISR International School on the Rhine, Germany. Publications. ISR, a socialist magazine, 1900-1918. Information Systems Research. International Socialist Review (disambiguation), U.S. publications. International Statistical Review. International Studies Review. Israel Studies Review. Science and technology. Biology. In-stent restenosis, recurrence of stenosis after stenting.
https://en.wikipedia.org/wiki/ISR