Fiennes or Ffiennes may refer to: A toponymic surname pronounced /ˈfaɪnz/ and borne by a prominent English family, descendant from Eustace I Fiennes, a nobleman in the 11th century from the region of Fiennes, then in County of Boulogne and part of Flanders.
[1] Better-known family members are: See Category:Fiennes family for a larger list.
For members of the Fiennes family: