Annie Russell Arnold (née Merrylees; 19 December 1866 – 5 September 1959) was a British miniature painter who worked in Scotland.
She studied in Edinburgh, first in the School of Art, under Mr. Hodder, and later in the life class of Robert Macgregor; afterward in Paris under Jean-Joseph Benjamin-Constant.
Arnold thought it important for miniature painters to do work in a more realistic medium occasionally, and something of a bolder character than can be done in their speciality.
This lady gave the artist a number of the Girl's Own Paper, containing directions for miniature painting, after which Arnold began to work in this speciality.
She painted a miniature of Lady Evelyn Cavendish, owned by the Marquis of Lansdowne; others of the Earl and Countess of Mar and Kellie, the first of which belongs to the Royal Scottish Academy; one of Lady Helen Vincent, one of Edith Phillips, the daughter of Lionel Phillips, and several for prominent families in Baltimore and Washington, D.C.