Charlotte Anne Montagu Douglas Scott, Duchess of Buccleuch and Queensberry, VA (née Thynne; 10 April 1811 – 18 March 1895) was a British peeress.

A daughter of Thomas Thynne, 2nd Marquess of Bath, Charlotte married Walter Montagu Douglas Scott, 5th Duke of Buccleuch in 1829.

From 1841 to 1846, the Duchess of Buccleuch served as the Mistress of the Robes to Queen Victoria as a member of Robert Peel's ministry.

Upon their parting, he saw tears in her eyes which prompted him to turn his coach around and approach her father directly to ask for her hand in marriage.

[2] Her husband was a staunch Conservative and became Lord Privy Seal in Peel's ministry from 1842 to 1846; the Duchess used the connection to help her brothers gain patronage.

[2] The historian Alex Tyrrell writes that the Duchess helped "consolidate Conservative influence in the royal household and counteract memories of the Bedchamber Crisis.

"[5] The Queen stood as godmother for the Duchess's eldest daughter Victoria Alexandrine, who was christened at Buckingham Palace in April 1845.

[11][12] The two engaged in philanthropic work in Edinburgh together,[12] and Lady Lothian helped persuade the Duchess to come to the decision to convert.