Caroline Townshend, 1st Baroness Greenwich (nee Campbell, 17 November 1717 — 11 January 1794) was a British peeress, a daughter of John Campbell, 2nd Duke of Argyll.
On 2 October 1742, she married Francis Scott, Earl of Dalkeith (a son of the 2nd Duke of Buccleuch) and took the courtesy title of Countess of Dalkeith. They were parents of the 3rd Duke. Francis died in 1750 and on 15 August 1755, she married Charles Townshend (a son of the 3rd Viscount Townshend).
On 28 August 1767, she was created Baroness Greenwich (a nod to her deceased father's title, Duke of Greenwich) in her own right, with a special remainder to her male issue by Townshend. As these two sons predeceased her, her title became extinct upon her death in 1794, aged 76.
An excoriating sketch of Lady Greenwich's character and unkindness to her daughter was drawn by Lady Louisa Stuart in her Memoire of Frances, Lady Douglas.