Despite the extensive research on integrity testing in personnel psychology, very little cross‐cultural evidence is currently available. The present study compares mean integrity test scores across 27 countries, based on data collected from 60,952 job applicants, and examines the relationship between these scores and a comparative index of country‐level corruption as a broad measure of cross‐cultural validity. G. S. Hofstede’s cultural dimension indices are then used to explain these findings. The results indicate significant variance between cross‐cultural integrity test scores overall, and that this variance is significantly related to country levels of corruption (r=−.48), as well as Hofstede’s power distance and collectivism dimensions, as hypothesized. The theoretical and practical implications of these findings are discussed.