Sophia Charlotte Waller, 2nd Baroness Howe (née Howe; 19 February 1762 – 3 December 1835), was a British noblewoman who became Baroness Howe after the death of her father Richard Howe, 1st Earl Howe, and the extinction of the title Earl Howe. In 1821, the title was revived when her son Richard was created Earl Howe.