Objective: The aim of this paper is to examine the effects of an educational peer-group intervention on knowledge about dementia, perceived ability to talk about it, received support and self-perceived pressure from informal care among family caregivers with a Turkish or Moroccan immigrant background who cared for a person with dementia. Methods: This paper is based on a cluster randomised controlled trial with three measures, including participants who knew or cared for a person with dementia. For the purpose of this study, a selection was made of participants who cared for a person with dementia. Knowledge about dementia, perceived ability to talk about dementia, support received and self-perceived pressure from informal care were assessed inthe intervention and the control condition. Multi-level analyses were conducted to examine the effects. Results: Data for 386 participants was analysed. Improvement in knowledge about dementia over time was significantly greater in the intervention condition than in the control condition. In the intervention condition, there was also a significant increase over time in the support received from home-care staff, which was not found in the control condition. No effects were found on other types of support received, the ability to talk about dementia or the self-perceived pressure from informal care. Conclusion: Offering a culturally sensitive educational peer-group education intervention enhances knowledge about dementia and has a small but positive effect on the support received from home-care staff in these groups. Practice Implications: Offering peer-group-based education about dementia to family caregivers with Turkish or Moroccan immigrant backgrounds is important for multicultural dementia care.