Duhaime's Law Dictionary

Promisor Definition:

The person who has become obliged through a promise (usually expressed in a contract) towards another.

Related Terms: Promisee, Obligor, Debtor

The oppposite of a promisee; the promisor is the one making the promise: the person who makes a promise or a contractual commitment.

Stewart Rapalje's dictionary:

"Promissor: one who makes a promise."

The 14th edition of Wharton's Law Lexicon, published in 1938, included these two terms:

"Promisee, one to whom a promise has been made.

"Promisor, one who makes a promise."

The promisor is often referred to as the obligor.

Who has become so obliged towards another, the promisee, the beneficiary of the promise.

In Soble v. Herman, Justice Hudgins of the Supreme Court of Virginia wrote:

"(T)he word promise, used in the first line of the statute, means the obligation of the person liable.... The word promisor refers to the person making the promise, or to some other person who has become legally bound to discharge the obligation."


  • Oppe, A. S., Wharton's Law Lexicon, 14th Ed. (London: Sweet & Maxwell, 1938), page 809.
  • Rapalje, Stewart and Lawrence, Robert, A Dictionary of American and English Law, Volume II (Jersey City: Frederick D. Linn & Co. Law Publishers and Booksellers, 1883), page 1023.
  • Soble v Herman, 9 SE 2d 459 (1940)

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