Geshem (disambiguation)

Geshem may refer to:
 * Geshem (גשם), a Hebrew word for "rain," applied mostly to the rains which occur in Israel over the course of the fall and winter.
 * This half of the year is called in the Mishnah "yemot ha-geshamin" (ימות הגשמין, days of rains).
 * By extension, the word Geshem refers to the piyyutim for rain recited at the Musaf service of Shemini Atzeret marking the beginning of the rainy season in Israel.
 * Geshem (Bible) or Gashmu, Arab leader who, along with Tobiah, opposed Nehemiah in the reconstruction of Jerusalem.