In order to avoid the worst impacts of climate change, offshore wind will need to make an increasing contribution to the global effort to reduce greenhouse gas emissions in line with the Paris Agreement. At the same time, it is imperative that offshore wind development is undertaken responsibly, considering both coastal communities and biodiversity. Especially in emerging market countries, coastal communities often rely heavily on the sea for their livelihoods, and the marine environment can be a vital part of their cultural norms and beliefs. Given the need to accelerate the deployment of offshore wind, governments in emerging markets are eager to progress quickly and some have already awarded seabed rights for projects, sometimes without adequate consideration of environmental and social (E&S) sensitivities. Poorly sited projects in areas where offshore wind could have significant impacts on communities and biodiversity will encounter difficulties throughout the permitting process, leading to delays and cost increases, and potentially resulting in projects failing to proceed. The detrimental impacts of projects deployed in these sensitive areas could lead to irreversible or costly impacts for people and biodiversity, stakeholder objections, weakened social acceptance, and negative implications for further deployment of offshore wind in the country. Poorly sited projects may also face challenges in securing finance. Delivering large capacities of offshore wind in emerging markets is likely to require financing that pushes or exceeds the capacity of many local lenders. To provide a sufficient volume of finance at an affordable rate, projects will often need to secure international finance to supplement local sources. To meet the requirements of international lenders and development finance institutions, offshore wind projects will need to align with Good International Industry Practice (GIIP) for environmentally and socially sustainable development. Avoidance is often the easiest, cheapest, and most effective way of reducing potential negative impacts. Therefore, it is imperative that projects are sited in areas where offshore wind is less likely to have significant impacts on communities and biodiversity while entirely avoiding areas where the likelihood of impacts is high. This guidance document, Integrated Environmental and Social Sensitivity Mapping—Guidance for Early Offshore Wind Spatial Planning (SenMap), is designed to support government planners in emerging market countries to identify potential areas for offshore wind development with the lowest E&S sensitivity. The resulting outputs—E&S sensitivity maps— can help identify broad potential development areas for offshore wind, at the earliest stages of government-led spatial planning. Sensitivity maps can support planning for avoidance, directing development away from areas where sensitivity is highest. While primarily a government-led planning tool, SenMap outputs could also be used to inform offshore wind project developers of the likely highest E&S sensitivities and enable them to select more suitable sites, plan mitigation measures, and integrate cost contingencies into competitive tenders. SenMap could also be used by developers and regulators alike to inform project-specific Environmental and Social Impact Assessment, through collating regional-scale E&S data in advance of more detailed, site-specific data collection efforts.