Princess Isabelle may refer to:
- Princess Isabelle of Orléans-Braganza (1911–2003), Countess of Paris
- Princess Isabelle of Orléans (1878–1961) (1878–1961), a member of the French Orleanist royal family
- Princess Isabelle of Orléans (1900–1983) (1900–1983)
- Princess Isabelle of Liechtenstein, a member of the Family of Liechtenstein