The influence of social environments on health and well-being is becoming increasingly acknowledged. Among the key elements of these environments, social connectedness, social support, and social capital have garnered significant attention across various disciplines. Social connectedness, social support, and social capital are vital factors in shaping the health and well-being of individuals. Strong social connections provide a sense of belonging, reduce feelings of isolation, and contribute to emotional stability. When individuals feel supported by their networks—whether family, friends, or community members—they are more likely to experience improved mental health, resilience, and overall life satisfaction. This chapter explores the significance of social connectedness, social support, and social capital in shaping the health and well-being of people. It delves into theoretical frameworks surrounding social connectedness, social support, and social capital and examines their impact on individual health and well-being.