Is an estate administrator the same as an executor in Israel?

Not exactly. An executor (or estate administrator) in Israel is always formally appointed by the Inheritance Registrar or Family Court under the Succession Law 1965 — there is no self-executing role as in some common-law countries. If the deceased named someone in their will to manage the estate, that person still requires a court order before they have any legal authority. In practice, both roles are referred to as estate administrator (menahel izavon) in Israeli legal proceedings.