Abstract Background This study aims to identify the relationships between health behaviours (healthy diet, physical activity, not smoking and social activity) and well-being among older adults with a Surinamese background. Methods Community-dwelling older adults (≥ 70 years) with a Surinamese background living in Rotterdam, the Netherlands, were identified by the municipal register. A survey study was conducted to assess background information, health behaviours (healthy diet, physical activity, not smoking and social activity) and well-being. Multiple regression analyses were performed to assess the relationships of health behaviours with well-being while controlling for background characteristics. Results Average age of participants was 76.2 (4.9) years, slightly more than half of them were female (54.2%). Almost half of the participants had a low-income level (49.6%). More than half of the participants met the Dutch guidelines of fruit intake (63.0%) and vegetable intake (62.8%). Less than half of the participants met the guidelines of fish intake (40.9%) and physical activity (39.8%). The majority of the participants were non-smokers (87.9%). Most of the participants had daily contact with family/friends (90.9%) and slightly more than half of the participants visited family/friends often (53.6%). Looking at the health behaviours, a positive relationship was found between eating enough fruit ( β = .109; p ≤ 0.05) and vegetables ( β = .135; p ≤ 0.01), physical activity ( β = .164; p ≤ 0.001) and often visiting family/friends ( β = .158; p ≤ 0.001) with well-being. Conclusion This study suggests that next to traditional health behaviours also social activity is an essential health behaviour for the well-being of older Surinamese adults. Research about health promotion should expand its focus by including social activity as health behaviour.