Eugène Louis Boudin (French; 12 July 1824 – 8 August 1898) was one of the first French landscape painters to paint outdoors. Boudin was a marine painter, and expert in the rendering of all that goes upon the sea and along its shores. His pastels, summary and economic, garnered the splendid eulogy of Baudelaire; and Corot called him the "king of the skies".
Dutch 17th-century masters profoundly influenced him, and on meeting the Dutch painter Johan Jongkind, who had already made his mark in French artistic circles, Boudin was advised by his new friend to paint outdoors (en plein air). He also worked with Troyon and Isabey, and in 1859 met Gustave Courbet who introduced him to Charles Baudelaire, the first critic to draw Boudin’s talents to public attention when the artist made his debut at the 1859 Paris Salon.
In 1857/58 Boudin befriended the young Claude Monet, then only 18, and persuaded him to give up his teenage caricature drawings and to become a landscape painter, helping to instill in him a love of bright hues and the play of light on water later evident in Monet's Impressionist paintings. The two remained lifelong friends and Monet later paid tribute to Boudin’s early influence. Boudin joined Monet and his young friends in the first Impressionist exhibition in 1873, but never considered himself a radical or innovator.