There are a growing number of children with an ID/developmental disability. As well, there is evidence of poor health in the caregivers of these children. This article describes a narrative review of the literature regarding the mental and physical health of caregivers of children with ID/developmental disability. The review examined 162 papers. Twenty‐three different factors were identified that may have an effect on the health of these caregivers. Social determinants, individual caregiver variables, characteristics of the child with the disability, family characteristics, and support factors can all affect caregiver health. These variables are inter‐related and illustrate the need to account for complexity when studying the health of caregivers of children with ID/developmental disability.