This chapter features an evidence-informed approach to sexual recidivism risk assessment. It begins with a definition and overview of sexual recidivism risk assessment and its purpose of sexual recidivism prevention by way of linking assessment and intervention through the lens of the risk-need-responsivity model. The chapter then reviews a number of best practice considerations that include use of multiple information sources, evaluating the accuracy and credibility of information, assessing multiple domains of functioning, use of static and dynamic measures, consideration of nonsexual recidivism risk measures, applications of risk assessment information, and consideration of ethnocultural diversity and other risk mitigating agents. A representative sampling, of sexual recidivism risk measures are covered, including a brief description of the measure along with its associated functions and features to guide the use of such measures in sexual recidivism risk assessment.