Valley of the Sédelle at Pont Charraud: White Frost

Armand Guillaumin (French: [aʁmɑ̃ ɡijomɛ̃]; 16 February 1841 – 26 June 1927) was a French Impressionist painter and lithographer.

Born Jean-Baptiste Armand Guillaumin in Paris, he worked at his uncle's lingerie shop while attending evening drawing lessons. He also worked for a French government railway before studying at the Académie Suisse in 1861. There, he met Paul Cézanne and Camille Pissarro, with whom he maintained lifelong friendships. While he never achieved the stature of these two, his influence on their work was significant. With these two friends, Guillaumin exhibited at the Salon des Refusés in 1863.

The three artists frequently painted in each other's company in the 1870s; for a time, Guillaumin and Cézanne had studios next door to each other on the Île Saint-Louis in Paris. In 1873, Cézanne made the only etchings of his career, one of them depicting Guillaumin (see Gallery below).

Guillaumin was a member of the Société anonyme des artistes peintres, sculpteurs et graveurs (later dubbed Impressionistes) from the start and he participated in six of the eight Impressionist exhibitions: 1874, 1877, 1880, 1881, 1882 and 1886.