- Aug 1 Sabbatai Zevi, Montenegrin rabbi, kabbalist, and founder of the Jewish Sabbatean movement, born in Ottoman Empire (d. 1676)
- Aug 12 Giovanni Legrenzi, Venetian Baroque organist and composer, born in Clusone, Republic of Venice (now Italy), (d. 1690)
- Aug 14 Daniel Elsevier, Dutch book publisher, born in Leiden, Zuid-Holland, Netherland (d. 1680)