Civic engagement is an umbrella term that includes various components and is rarely defined for low-income individuals in the context of developing countries. This paper investigates and establishes the construct validity of an instrument to measure civic engagement among this study population. The sample consists of 9,013 low-income individuals within 37 low-, lower-middle, and upper-middle income countries. The data is drawn from the World Values Survey Wave 6 (2010-2014). Several factor analysis models were estimated, including an individual-level exploratory factor analysis (EFA), an individual-level confirmatory factor analysis (CFA), and a multi-level (individual- and country-level) confirmatory factor analysis (MCFA). Results supported a three-factor structure at both individual and country levels: 1) electoral behavior, 2) membership in civic organizations, and 3) cognitive engagement. Results indicated that the proposed factor structure fits the data well, at both the individual and country levels. The results of this study have both practical and conceptual implications. For researchers, this study provides initial evidence for the construct validity of the civic engagement for use with low-income individuals in developing countries. Practitioners also may use the findings to develop interventions and policies that would improve civic engagement among the study population.