This study aims to investigate the intricate relationship between social media motivations and subjective happiness, utilizing a novel framework based on the uses and gratifications theory and cultural restraint. Through a quantitative analysis using structural equation modeling (SEM) of a sample of 391 young Jordanian adults, the findings reveal a surprising positive correlation between social media motivations and subjective happiness, with cultural restraint emerging as a critical moderator in this dynamic. Cultural restraint negatively moderates the relationship between social media motivations and subjective happiness. By shedding light on the powerful role of cultural factors in shaping our relationship with social media, this study offers essential insights for practitioners seeking to enhance user experiences and maximize well-being.