Length–weight relationships (LWR) for 36 deep-sea fish species belonging to 22 families are provided. Samples were collected during 2009 by trawling with the sampling design stratified by depths ranging from 200 to 550 m in the Colombian Caribbean Sea. To the best knowledge of the authors, this study represents the first study on length–weight relationships for 17 species worldwide, as well as 13 new maximum lengths.
