Mary Ramsden, née Symonds (1772 – 1854), was an English watercolour painter. In 1801, she travelled with her sister, Elizabeth Gwillim, and her sister's husband, Sir Henry Gwillim, to Madras, India (now Chennai). She resided in Madras until 1808, and during this time she produced a series of watercolours of local landscapes as well as a series of watercolours of Indian fish. Her letters are noteworthy for the insight they offer about life in early nineteenth-century Madras.