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.Keywords: Heart failure, social support, self-care behavioureISSN: 2398-4287 © 2019. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open-access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.DOI: https://doi.org/10.21834/e-bpj.v4i12.1906