Objective: The Comprehensive Executive Function Inventory (CEFI) is a standardized questionnaire that measures executive functions (EF) in youth ages 5 to 18. This test review provides an overview of the CEFI, test structure, current reliability and validity evidence. Method: The normative sample consisted of 3, 500 CEFI ratings (1, 400 for parent and teacher forms, 700 for self-report forms). Gender was evenly distributed among parent, teacher, and youth categories. Majority of sample was White (56.5%) and also included Hispanic, African American, Asian, and Other. Results: Correlations for test-retest reliability were moderate to very strong (r = .74 to .91) across all scales. Correlations for inter-rater reliability for Full Scale for parents was .88 and CEFI scales (r = .73 to .86 ) indicating strong correlations. Correlations for Full Scale for teachers was .68 and CEFI scales (r = .54 to .68). Strong correlations were also indicated between the CEFI and BRIEF for parent (r = .85), teacher (r = .64), and self-report (r = .68). Conclusion(s): The CEFI is a promising neuropsychological measure for assessing EF deficits in youth. It is purported to be strongly correlated with the BRIEF, another well established assessment of EF. It is also unique in its ability to target strengths and weaknesses in EF for treatment planning. Although the CEFI appears to have strong reliability, further research is needed regarding the statistical properties. Additional independent research involving minority groups, additional clinical groups, and the CEFI's sensitivity to detect EF deficits related to specific neurological disorders and brain injuries is also needed.