This study explored the relationships between parenting beliefs, authoritative parenting style, and student achievement. Data were gathered from 49 parents who had school-aged children enrolled in grades K–12 regarding the manner in which they parent and their child’s school performance. Pearson product-moment correlation coefficients and multiple regression modeling were used to analyze the data. Findings suggested that parent involvement, suspension, and homework completion significantly accounted for the variance explained in grade point average. Authoritativeness was positively and significantly related to both rational and irrational parenting beliefs. Irrational parenting beliefs were positively and significantly related to homework completion. School counselors are encouraged to consider the impact of parenting on student success when developing comprehensive programming.