Addiction is a prevalent and complex problem. Likewise, sin is universal but cannot be considered in a simplistic manner. I suggest that psychological conceptions of addiction and theological conceptions of sin can inform one another. Although they are not identical, both addiction and sin are characterized by ambivalence, denial, self-absorption, and self-deceit. Both often develop as a means to avoid emotional/psychological distress but easily spiral out of control. They involve volition, but choices may be constrained by experience. Considering the nuances of sin and addiction can guide a compassionate Christian response.