Synopsis or synopsys may refer to:
- Kievan Synopsis, a historical work, first published in Kiev in 1674
- Synopsis of Pure Mathematics, a book by G. S. Carr, written in 1886
- Synopsis Universae Philologiae, an early work on comparative linguistics by Gottfried Hensel (Godofredus Henselius, 1687–1767)
- Synopsys, an electronic design automation company based in Mountain View, California
- Video Synopsis, an approach to create a short video summary of a long video.