Although there have been marked improvements in both diagnostic and therapeutic interventions over several decades, coronary artery disease (CAD) remains the leading cause of death worldwide. Intensive modification of classic risk factors such as hypertension, diabetes mellitus, dyslipidaemia, and cigarette smoking has significantly reduced the development of CAD. The high prevalence of residual cardiovascular events does however require improvements in identification and risk stratification strategies. In this context, arterial stiffness, which reflects arterial ageing, damage, and arteriosclerosis has emerged as an important risk factor for cardiovascular disease. The measurements of arterial stiffness are easy to make using several non-invasive methods such as pulse wave velocity. The clinical utility of the measures has been validated in many prior studies. Recent evidence has suggested that the measures of arterial stiffness are correlated with the presence and extent of CAD. More importantly, increased arterial stiffness is an independent predictor of CAD-related morbidity and mortality beyond classic risk factors. Considering its non-invasiveness, simplicity, and reliability, arterial stiffness could serve as a useful marker of CAD and help identify high-risk patients who may benefit from more aggressive management.