Crab on its Back (Dutch: Een op zijn rug liggende krab) is an oil painting by Vincent van Gogh.

It is a still life of a crab lying on its back with a green background.

[2] The painting is in the permanent collection of the Van Gogh Museum in Amsterdam in the Netherlands.

[1] The painting is possibly inspired by a Japanese print of a crab by Hokusai that Van Gogh had seen in the magazine Le Japon Artistique, which his brother Theo van Gogh had sent him in September 1888.

[1][3] Van Gogh also painted Two Crabs (1889), a still life with two crabs one of which is lying on its back, on display in the National Gallery in London.