Demographics are changing and populations are becoming more diverse in many but not all countries. In some countries, an increasing number of businesses are owned by women, visible minorities and other diversity groups. In response, academics and practitioners are starting to pay attention to supplier diversity (SD), which encourages purchasing goods and services from suppliers owned by members of diversity groups. This study focuses on development of SD programs in various countries, along with facilitators or inhibitors of SD adoption. The primary research question is: What national or cultural characteristics make organizations in a country more (or less) likely to have SD programs? Characteristics of interest include ethnic diversity of the population, GDP and Hofstede’s power distance index. Data collection included administration of a survey of purchasing and supply management professionals from 37 countries and gathering of secondary data for 55 countries.