Gustave-Henri Colin was a French painter.

Gustave-Henri Colin was born on July 11, 1828 in Arras, France. He learned painting from Constant Dutilleux in Arras. Upon moving to Paris, he took lessons from Ary Scheffer and Thomas Couture.

Colin was a painter. He painted landscapes and portraits. He exhibited his first painting, Portrait of a Grandmother, at the Salon in Paris in 1857. A year later, in 1858, he established a studio in Ciboure near Biarritz. By 1863, he exhibited his work at the Salon des Refusés in Paris.

Colin spent time at the Château d'Orrouy, a castle owned by Count Armand Doria, an aristocrat and art collector. He met James McNeill Whistler in Saint-Jean-de-Luz in 1862.

Colin was married to a Basque.

Colin died on December 28, 1910 in Paris, France.