Introduction Family carers of people with dementia are their most important support in practical, personal, and economic terms. Carers are vital to maintaining the quality of life (QOL) of people with dementia. This review aims to identify factors related to the QOL of family carers of people with dementia. Methods Searches on terms including “carers,” “dementia,” “family,” and “quality of life” in research databases. Findings were synthesized inductively, grouping factors associated with carer QOL into themes.