Willard Morse Mitchell (February 14, 1879 – June 15, 1955) was a Canadian artist and architect best known for his miniature watercolour paintings.
He was born in Saint John, New Brunswick, being the youngest of six children.
He attended Rothesay Collegiate and later studied art and architecture in Saint John.
He moved to Belleville, Ontario in 1923 and in 1927 he removed to Montreal where he focused exclusively on the sale of his art as souvenir pieces.
He is noted for painting very small pieces of art, often no more than 150 square centimetres in size.