Yaakov Heruti (Hebrew: ???? ?????, born 1927) is an Israeli lawyer and right-wing activist.
He was a member of the pre-state militant group Lehi, during which he built bombs for the organization and in particular, assembled the letter bomb that was sent to Roy Farran while stationed in Britain as an undercover agent.
He later became the leader of the group Kingdom of Israel, which bombed the Soviet embassy in Tel Aviv and carried out other acts of political violence in the 1950s, for which he served a two-year prison term.
He later became involved in politics and settlement activity, participating in the founding of two right-wing political parties and assisting settlers in purchasing land.