Pesant, Stéphane . et. al.-- 16 pages, 5 figures, 2 tables.-- This article is contribution number 26 of the Tara Oceans Consortium ; The Tara Oceans expedition (2009–2013) sampled contrasting ecosystems of the world oceans, collecting environmental data and plankton, from viruses to metazoans, for later analysis using modern sequencing and state-of-the-art imaging technologies. It surveyed 210 ecosystems in 20 biogeographic provinces, collecting over 35,000 samples of seawater and plankton. The interpretation of such an extensive collection of samples in their ecological context requires means to explore, assess and access raw and validated data sets. To address this challenge, the Tara Oceans Consortium offers open science resources, including the use of open access archives for nucleotides (ENA) and for environmental, biogeochemical, taxonomic and morphological data (PANGAEA), and the development of on line discovery tools and collaborative annotation tools for sequences and images. Here, we present an overview of Tara Oceans Data, and we provide detailed registries (data sets) of all campaigns (from port-to-port), stations and sampling events ; We thank the commitment of the following people and sponsors who made this singular expedition possible: CNRS (in particular the Groupement de Recherche GDR3280), European Molecular Biology Laboratory (EMBL), Genoscope/CEA, Fund for Scientific Research—Flanders, VIB, Stazione Zoologica Anton Dohrn, UNIMIB, ANR (projects POSEIDON/ANR-09-BLAN-0348, BIOMARKS/ANR-08-BDVA- 003, PROMETHEUS/ANR-09-GENM-031, PROMETHEUS/ANR-09-PCS-GENM-217, TARAGIRUS/ANR-09-PCS-GENM-218, OCEANOMICS/ANR-11-BTBR-0008, FRANCE GENOMIQUE/ANR-10-INBS-09-08), EU FP7 (MicroB3/No.287589, IHMS/HEALTH-F4-2010-261376, MetaCardis/HEALTH-F4-2012-305312), ERC Advanced Grant Awards to CB (Diatomite: 294823) and PB (CancerBiome: 268985), Spanish Ministry of Science and Innovation grant CGL2011-26848/BOS MicroOcean PANGENOMICS to SGA, JSPS KAKENHI Grant Number 26430184 to HO, FWO, BIO5, Biosphere 2, agne`s b., the Veolia Environment Foundation, Region Bretagne, World Courier, Illumina, Cap L’Orient, the EDF Foundation EDF Diversiterre, FRB, the Prince Albert II de Monaco Foundation, Etienne Bourgois, the Tara schooner and its captain and crew. Tara Oceans would not exist without continuous support from 23 institutes (http://oceans.taraexpeditions.org) ; Peer Reviewed