What is the legal term for a man who creates a last will and testament?

The legal term for a man who creates a last will and testament is "testator." A testator is an individual who has made a will, thereby stipulating how their assets and estate should be distributed upon their death. This term specifically applies regardless of the gender of the person; however, when referring to a male individual, "testator" is appropriate and widely accepted.

The other terms have specific meanings that do not apply to someone creating a will. For example, "testatrix" is used for a female individual who creates a will. An "executor" is a person appointed in a will to carry out the wishes of the testator after their death, while a "beneficiary" is someone who receives assets or benefits from a will. Understanding these distinctions is essential for comprehending the roles involved in estate planning and administration.