The author, a U.S. geographer specializing in issues of population change and urbanization in the countries of the former USSR, extends an earlier study of the population of Belarus (Rowland, 2003) by focusing on trends of change in the nationality composition of that country's population revealed by the most recent (1999) census. More specifically, the paper analyzes trends and patterns of the nationality composition of the total, urban, and rural Belarusian population at both the national and regional levels for the period 1989-1999.