This document reports on the French oceanographic cruises conducted in 2015. It was drawn up by IFREMER, and more specifically by the SISMER (French acronym for Scientific information systems for the SEA) department which is in charge of managing the metadata and data produced by French research cruises. It provides a detailed description of the role of the various players managing French ocean-going facilities and of the means to archive cruise information and oceanographic data. It presents the fleet’s activity in 2015 and provides dynamic access to cruise information through the new research cruise catalogue: http://campagnes.flotteoceanographique.fr/. Previous years’ reports for French oceanographic cruises are also available via the Archimer website IFREMER’S institutional archive, at: http://archimer.ifremer.fr/.