Objective: The transition from active cancer treatment to survivorship represents a period of uncertainty for youth and their families, but factors associated with adaptation during this period are understudied. We evaluated associations among cancer and treatment‐related variables, family factors (family functioning, caregiver health‐related quality of life [HRQL], and caregiver distress), and patient HRQL after treatment completion. We assessed the indirect effects of neurocognitive difficulties on youth HRQL through family factors.