Five species of siphonophores are newly recorded in the Colombian Caribbean Sea: the physonects Athorybia rosacea (Forsskål, 1775), Nanomia bijuga (Delle Chiaje, 1844), and Agalma okenii Eschscholtz, 1825 and the calycophores Amphicaryon ernesti Totton, 1954 and Hippopodius hippopus (Forsskål, 1776), from samples collected with deep-water trawls in six hydrocarbon exploration areas (GUA OFF 3, COL 1, COL 2, COL 3, COL 4; COL 10) where research projects were undertaken in 2013 and 2018 by the Marine and Coastal Research Institute “Jose Benito Vives de Andreis” in agreement with the National Hydrocarbon Agency.