Countess of Snowdon may refer to:
- Princess Margaret, Countess of Snowdon (1930–2002), youngest child of George VI and first wife of Antony Armstrong-Jones, 1st Earl of Snowdon
- Lucy Armstrong-Jones, Countess of Snowdon, second wife of Antony Armstrong-Jones, 1st Earl of Snowdon
- Serena Armstrong-Jones, Countess of Snowdon (born 1970), estranged wife of David Armstrong-Jones, 2nd Earl of Snowdon
See also
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