Rationale Supporting people to live well with dementia is an international government priority. People living with dementia experience a range of positive emotions despite the challenges associated with dementia. Further research is needed to explore how these positive experiences can be fostered to support well-being. There is empirical evidence of the benefits of gratitude in other clinical groups, but no studies have explored how gratitude is experienced by people living with dementia. Methods In this mixed-methods study, eight people living with dementia shared their experiences of gratitude through interviews and gratitude diaries. Qualitative data were analysed using interpretative phenomenological analysis. Quantitative data regarding diary use were analysed using descriptive statistics. Findings and Conclusions Gratitude holds interpersonal and transpersonal meanings for people living with dementia, balanced with challenges of dementia and ageing. This study offers insight into the existence and relevance of gratitude for people living with dementia, highlighting the importance of using multiple methods in dementia research. Positive psychology interventions informed by these findings may be effective in supporting well-being for people with dementia.