The aim of this study was to investigate the relationship between Mindfulness, Relationship Satisfaction and Subjective Happiness among young couples’ population. The sample included 60 participants who were in a relationship aged between 18 to 29 years. It was hypothesized that the three variables are strongly correlated with each other. to test the same, three scales were used, Mindful attention awareness Scale, Relationship assessment Scale and the Subjective happiness scale was used to measure the variables. Data was analysed using Pearson correlation coefficient along with Consent form and demographic details to study the correlation between Mindfulness, Relationship Satisfaction and Subjective happiness. The results showed that there is a positive correlation between Mindfulness and Relationship satisfaction , Mindfulness and subjective Happiness and Relationship satisfaction and subjective happiness among young couples. This suggests that individuals who are mindful experience high relationship satisfaction and happiness .A detailed discussion and the limitations of the study are discussed.