David Seco Amundarain (born March 17, 1973 in Busturia, Biscay) is a Spanish professional racing cyclist. Although he is known as a cyclo cross racer he also race road. He was part of Ripolin Bondex team in the 90s. He was on the same team as Óscar Freire and Iñaki Barrenetxea, both profesionals later on.