Sir Francis Palgrave, KH FRS, born Francis Ephraim Cohen, (July 1788 – 6 July 1861) was an English archivist and historian. He was Deputy Keeper (chief executive) of the Public Record Office from its foundation in 1838 until his death; and he is also remembered for his many scholarly publications.
Francis Cohen was born in London, the son of Meyer Cohen, a Jewish (d. 1831) by his wife Rachel Levien Cohen (d. 1815). He was initially articled as a clerk to a London solicitor's firm, and remained there as chief clerk until 1822. His father was financially ruined in 1810 and Francis, the eldest son, became responsible for supporting his parents. Around 1814, Francis Cohen began contributing to the Edinburgh Review; he made the acquaintance of the banker Dawson Turner and his daughter Elizabeth in 1819, offering to correct the proofs of Turner's Architectural Antiquities of Normandy. In 1821, Francis Cohen was admitted to the Fellowship of the Royal Society, one of his sponsors being Turner. Cohen converted to Anglican Christianity before his marriage to Elizabeth Turner on 13 October 1823.
Around the time of his marriage, Cohen also changed his surname to "Palgrave" (his wife's mother's maiden name) by royal licence. It is not clear if either the religious conversion or the name change were conditions of his marriage; however, his father-in-law paid for the expenses of the name change, and settled £3,000 on the couple.
Palgrave was called to the bar in 1827 (after a long period working for solicitors, 1803-1822).