The authors meta-analytically examined the relationship between intrinsic religiosity and internal locus of control. Thirty-seven independent samples, comprising 9,924 participants, yielded an average effect size of r =.06, which was small, but significant, indicating a positive correlation between intrinsic religiosity and internal locus of control. Moderation analyses showed a significant trend of effects becoming weaker over time. The judged religiousness of samples significantly predicted the strength of the correlation, such that more religious samples showed stronger effect sizes.