Project 5-O is concerned with vocational and other training for women and girls in developing countries and countries in transition. It is a cooperative project in the 28 years that it has been undertaken jointly by the International Federation of Business & Professional Women (BPW International), International Council of Women (ICW), International Federation of University Women, Soroptimist International, and Zonta International.

The objective of Project 5-O is to use the skills and expertise of the members of the participating organizations to support 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.