Gastineau may refer to: People Henry Gastineau (1791–1876), English engraver and painter Mark Gastineau (born 1956), American football player Other uses Alaska-Gastineau Mine, Alaska, USA Gastineau Channel, Alaska, USA The Gastineau Girls, an American reality series Gastineau Peak, a mountain in Juneau, Alaska, USA Gastineau Range, a small mountain range in British Columbia, Canada See also Gatineau (disambiguation)