Henthorn v Fraser [1892] 2 Ch 27 is a decision of the Court of Appeal of England and Wales dealing with the postal rule in English law of contract formation.

The defendant handed the claimant a note giving him the option to purchase some houses within 14 days.

On the next day, the defendant withdrew the offer by post, but his withdrawal did not reach the claimant until 5 P.M.

Meanwhile, the claimant responded by post with an unconditional acceptance of the offer, which was delivered to the defendant after its office had closed.

The case is based on a line of decision starting with Adams v Lindsell (1818), according to which the acceptance was valid at the time of posting.