Barbara Mary Ward, Baroness Jackson of Lodsworth, DBE (23 May 1914 – 31 May 1981) was a British economist and writer interested in the problems of developing countries. She urged Western governments to share their prosperity with the rest of the world and in the 1960s turned her attention to environmental questions as well. She was an early advocate of sustainable development before this term became familiar and was well known as a journalist, lecturer and broadcaster. Ward was adviser to policy-makers in the UK, United States and elsewhere. She is the founder of the International Institute for Environment and Development (IIED).