The societal challenge of dementia is the expected steep increase in the number of people with dementia in the coming years with a concurrent decrease in the workforce of professional caregivers. Although progress has been made in improving care and support for people with dementia and their carers, experienced disease burden is high and many health and social care needs are not met. Inequity, a lack of individualization of treatment and care and a gap between research and practice implementation underpin the mismatch between the supply and demand resulting in these unmet needs. The INTEREST Working Group proposes to address these problems by taking a multi-level (micro-, meso- macro) approach to analysing unmet needs. We will use an overarching framework of social health for people with dementia and an intersectional lens to guide these analysis. Results will guide the development of mechanisms for addressing these gaps: strategic policy and best-practice guidelines, innovative research frameworks and increased research capacity to supporting transnational research to achieve equitable dementia research, care and treatment.