Background/aim: Occupational therapists and health practitioners commonly provide interventions to family caregivers of people with dementia with the aim of relieving burden, depression, and disruptions in health and social support. To date, the effects of multicomponent interventions specifically targeting these four important outcomes has not been established. The aim of this study was to evaluate the effectiveness of multicomponent interventions on four outcomes for co‐residing family caregivers of people with dementia.