Amund Ringnes (7 October 1840 – 13 January 1907) was a Norwegian businessman, brewery owner and patron. He was born in Krødsherad, Buskerud, the son of Anders Knudsen Ringnes (1813–75), farmer, and his wife Maren Amundsdatter (1815–76). He grew up at the Ringnes farm, and commenced working at Akers Mekaniske Verksted in 1860. He left Akers Mek. Verksted in 1865, and was employed by the brewery Christiania Bryggeri. In 1876, he founded Ringnes & Compani brewery with his brother Ellef Ringnes and the businessman Axel Heiberg. It was the eighth brewery in Christiania (now Oslo), and later had its name changed to Ringnes Bryggeri.