Ya'akov Shimshon Shapira (Hebrew: יעקב שמשון שפירא, 11 April 1902 – 14 November 1993) was an Israeli jurist and Labor Zionist politician.

In 1924, he immigrated to the British Mandate of Palestine and joined a "Conquest of Labor" group in Petah Tikva, where he worked as an orchardman.

[1] As Minister of Justice, he opposed the annexation of East Jerusalem after the Six-Day War, preferring the application of military rule.

[3][4] He also opposed a governmental plan to transfer subject Arabs to other countries, saying: "They are inhabitants of this land, and today you are ruling over it.

[5] Following the Yom Kippur War, he resigned from the government after his demands to fire Minister of Defense Moshe Dayan were denied.