This document is developed as part of the NanoCommons project, which is a European Union’s Horizon 2020 Research and Innovation Program, under the Grant Agreement number 731032. The NanoCommons Dissemination strategy provides guidance and direction for all partners on the required dissemination activities, and ensures a unified approach across the entire consortium. The aim of the Dissemination Strategy is to identify the necessary communication and dissemination activities and plan them to best achieve the desired results in terms of community building, advancement of best practice in open science for nanosafety and promoting adoption of the NanoCommons suite of tools and solutions. This strategy begins by identifying the project communication and dissemination objectives, the material that needs to be communicated or disseminated, the dissemination tools, the targeted audiences for the dissemination activities, and the means by which to reach each audience.