Rosh (Hebrew: ראש‎, "head" or "leader") may refer to:

  • Rosh, a minor Biblical figure, mentioned in the Book of Genesis and a nation listed in Ezekiel
  • "The ROSH", Rabbi Asher ben Jehiel (1250-1328) a prominent Talmudic scholar
  • Rosh Hashanah, the day of the Jewish New year
  • Rosh Hashanah (Talmud), a text of Jewish law in the Mishna and Talmud
  • Rosh Chodesh, the first day of each Hebrew month
  • Rosh yeshiva, the head of a Talmudic academy (yeshiva)
  • Lea Rosh, German television journalist and publicist
  • Roshambo, An alternate name of Rock-Paper-Scissors
  • An environmental European law Restriction of Hazardous Substances Directive