'Baron Dynham (alias Dinham and Dinan) is a title which has been used twice in the English peerage, for:
Note: Leigh Raymant's website on The Peerages of England, Scotland, Ireland, Great Britain and the United Kingdom, shows this barony as Dinan and lists Oliver as the 1st Baron Dinan, and John Dinan KG as the 7th and last Baron Dinan, apparently treating the intervening peerages as hereditary without individual summons.