Affiant

a person who makes an affidavit.
Historical Examples

The signature should correspond exactly with the name of the affiant stated at the beginning.
Copyright: Its History and Its Law Richard Rogers Bowker

Where a corporation or firm is the claimant, the affiant should swear as agent.
Copyright: Its History and Its Law Richard Rogers Bowker

The signature of the affiant and of the notary and the seal are all necessary to validate the affidavit.
Copyright: Its History and Its Law Richard Rogers Bowker

It is not true that this affiant has ever been party to the commission of any crime or any misdemeanor.
‘The System,’ as uncovered by the San Francisco Graft Prosecution Franklin Hichborn

The writing other than that of Lee Harvey Oswald is that of affiant.
Warren Commission (11 of 26): Hearings Vol. XI (of 15) The President’s Commission on the Assassination of President Kennedy

affiant is familiar with the handwriting of her sister Marguerite Claverie Oswald.
Warren Commission (11 of 26): Hearings Vol. XI (of 15) The President’s Commission on the Assassination of President Kennedy

That to disclose the source of affiant’s information at this time might defeat the ends of justice.
New York Times Current History; The European War, Vol 2, No. 4, July, 1915 Various

Failure to state in what capacity the affiant takes the oath, whether as claimant, agent of the claimant, or printer.
Copyright: Its History and Its Law Richard Rogers Bowker

Wherefore, affiant prays that said Gustav Stahl may be arrested and imprisoned, or bailed, as the case may be.
New York Times Current History; The European War, Vol 2, No. 4, July, 1915 Various

noun
(US, law) a person who makes an affidavit