I Will Repay is a novel by Baroness Emmuska Orczy, author of The Scarlet Pimpernel, who lived at Acol (near Thanet in Kent).

I Will Repay is the second Scarlet Pimpernel book written by Orczy although it comes chronologically third in the series, after Sir Percy Leads the Band and before The Elusive Pimpernel.

Arthur Linfoot wrote that he had finished reading I Will Repay on 23 January 1916, while posted to the RAMC training camp at Alnwick.