This study assessed grief in caregivers of family members with alcohol use disorder (AUD) and substance use disorder (SUD) using the Marwit-Meuser Caregiver Grief Inventory Short Form (MM-CGI-SF). We used snowball sampling to recruit participants who had family members with AUD and SUD. The sample was comprised of 100 caregivers of family members with AUD and 75 caregivers of family members with SUD. The original MM-CFI-SF was modified by changing the wording to reflect those with AUD and SUD.