Isabel de Clare
Isabel de Clare is the name of:
- Isabel de Clare, 4th Countess of Pembroke (1172-1220), Anglo-Norman nobleman, wife of William Marshal, 1st Earl of Pembroke
- Isabel de Clare (nobleman, 1226) (1226 – after 1264), Anglo-Scottish nobleman, wife of Robert Bruce, Lord of Annandale
- Isabel de Clare (noblewoman, 1240) (1240 – before 1271), Anglo-Norman nobleman, wife of Wilhelm VII. (Montferrat)
- Isabel de Clare ( Noblewoman , 1263) (1263–1338), English nobleman, wife of Maurice de Berkeley, 2nd Baron Berkeley