Project Five-O is concerned with vocational and other training for women and girls in developing countries and countries in transition. It is a cooperative project undertaken jointly by Business & Professional Women International, International Council of Women, International Federation of University Women, and Soroptimist International.

The object of Project Five-O is to use the skills and expertise of the members of the participating organisations to provide training courses in income-generating skills, including employment and working skills, marketing and small business operations, accompanied by training in health, nutrition, hygiene, child care and literacy.