Heart failure is a disease that could cause a significant medical burden. This study aims to determine the relationship between social support and self-care behaviour among heart failure patients. Thirty patients from a Clinical Training Centre participated in this cross-sectional study. Instruments used in the study were the Multidimensional Scale of Perceived Social Support (MSPSS) and The European Heart Failure Self-care Behaviour Scale-9 item (EHFSCBC). The results showed that there was a relationship between social support and self-care behaviour (r=0.40, p<0.05). Awareness of the impact of social support on self-care behaviour is vital for heart failure patients and their families.