The present document defines the general One Health European Joint Program (OHEJP) strategy regarding data management in the form of an overarching data management plan (DMP), under conditions that conform with the requirements of Horizon 2020. The OH-EJP aims at integrating the complementary expertise of partners across Europe in order to prepare common action against infectious health threats. Those threats include zoonotic infections both in animals and humans, and infections or toxin contamination in feed and food. Due to the heterogeneity of the data that are collected, processed or generated within OHEJP, and due to the level of detail needed, each joint research project (JRP) and joint integrative project (JIP) of OHEJP are also developing project specific DMP’s, using as baseline the present overarching DMP.