Testator

[JinnyJoan]

just to confirm what is the above.  

[donny48]

I assume you are asking for the meaning of testator.

a person who has made a will or given a legacy.

[Vagus]

If you make a will, you are the testator.

Ive made a will and I am the testator, as I am the person who has made my will.

[Peter Pedant]

if you write a will, you are the testator - actually testatrix as a girl

[Hopkirk]

I'm sure I saw a video about a testatrix 

[jno]

was that about a woman who ties her clients up in legal niceties?