Jastrow may refer to:
- Jastrowie (German: Jastrow), a town in Poland
As a surname it may refer to:
- Marcus Jastrow (1829-1903), Jewish scholar
- Ignaz Jastrow (1856-1937), German economist and historian
- Morris Jastrow, Jr. (1861-1921), American Orientalist, son of Marcus Jastrow
- Joseph Jastrow (1863-1944), American psychologist
- Robert Jastrow (1925-2008), American astronomer
- Otto Jastrow (born 1942), German Arabist and Syriacist