In the UK, healthcare professionals, patients and the public can voluntarily report a suspected adverse drug reaction (ADR) to the Yellow Card Scheme operated by the MHRA. It is recognised that pharmacists play a key role in ADR reporting and it remains essential to teach about ADR reporting in pharmacy undergraduate curricula. Furthermore, the aim of the study was to determine undergraduate fourth-year pharmacy students’ awareness and understanding of ADR reporting, as it currently remains unknown. rnrnA cross-sectional survey was distributed to the University of Wolverhampton, University of Central Lancashire, Kingston University, and Liverpool John Moores University.rnrnOf 78 respondents, 50 students were unable to define an ADR. The majority of students’ demonstrated partial understanding of what can be reported and included on a Yellow Card. The majority of students’ understood when to report an ADR and recognised the benefits to reporting. There was an overall awareness of the Yellow Card Scheme, reporting methods, who can report and the available resources for ADR information. The null hypothesis was accepted; the method and timing of teaching did not have an impact on the level of awareness and understanding of ADR reporting among students.rnrnThe study concluded that fourth-year pharmacy students have an overall awareness and partial understanding of ADR reporting. It is recommended to implement a refresher lecture, workshop or tutorial throughout the undergraduate pharmacy course. The aim of this being to maintain undergraduate knowledge about ADR reporting, which may improve their ADR reporting rate and patient safety as practicing pharmacists. rn