<p>Providing care to family members and friends in older age is common, but it can impact the carers’ time and energy for social participation. This study explores the relationship between care and social participation in 16 European countries, considering factors like care status, care frequency, relationship to the care recipient, gender, socioeconomic status, and country care regimes. The study utilised pooled data from the Survey of Health Ageing and Retirement in Europe and the English Longitudinal Study of Ageing. Multiple regression models assessed the association between care status (non-carer, carer, and former carer) and social participation measured through volunteering frequency and group membership. The models adjusted for various demographic and socioeconomic covariates. The study found that carers, especially those doing so more frequently (daily and weekly care), were more likely to volunteer and belong to groups compared to non-carers. Furthermore, compared to non-carers individuals caring for their partner, parent, or non-relatives were more likely to engage in social participation. The association between care and social participation appeared stronger for carers in countries with supportive care regimes. The findings support the idea that care and social participation are complementary activities, where engagement in one represents an avenue for greater participation in the other.</p>