Patient-reported outcome measures (PROMs) are essential tools in patient-centred care, enabling the measurement of symptoms, function, quality of life, and well-being from the patient’s perspective. PROMs developed in one cultural or linguistic context may not directly translate to another due to variations in interpretation, health beliefs, and language. Contextual validation is therefore critical to ensure measurement accuracy and relevance. In this study, we aim to identify what PROMs instruments have been validated in Singapore and to what extent. By systematically collecting and reporting these data, we can inform the implementation and eventual further development of patient-centred measures in Singapore.