Shlomo Zemach (Hebrew: שלמה צמח; 2 June 1886 – 6 November 1974) was an Israeli author, agriculturalist, and early Zionist pioneer.

Zemach received a traditional Jewish education at cheder and beit midrash.

In 1904, Zemach was the first Zionist to emigrate from Płońsk to Ottoman Palestine using 300 rubles his father had entrusted him to take to the bank.

In 1906 he returned to Płońsk to make peace with his family and in early September traveled back to Palestine with Ben Gurion, Rachel Nelkin and her mother Shoshana.

In 1914, he qualified as an agricultural engineer and went to visit his parents' home in Płońsk, where he was caught up in the outbreak of the First World War.