Objectives: Little is known about nurses’ and patients’ perceptions of learning needs following coronary artery bypass graft (CABG) surgery in Oman. This study aimed to identify patients' and nurses' perceptions of post-CABG learning needs. Methods: This cross-sectional study was conducted in two cardiac units in Oman between February and April 2018. Participants were from step-down units and perceptions of post-CABG learning needs were collected using a modified version of the Cardiac Patients Learning Need Inventory (MCPLNI) questionnaire. Data were analysed using descriptive and inferential statistics. Results: A total of 90 patients and 90 nurses were included in this study (response rate: 100%). Nurses perceived information about chest and leg wound care, medications and complications as patients’ most important learning needs (4.89 ± 0.31, 4.84 ± 0.33 and 4.78 ± 0.45, respectively). Similarly, patients perceived a need for post-CABG learning related to chest and leg wound care, complications and medication, while learning related to physical activity received a moderate priority (4.92 ± 0.20, 4.80 ± 0.45, 4.85 ± 0.26 and 3.50 ± 1.34, respectively). Conclusion: Before discharging patients, they should be provided with specific information related to post-CABG care. It is essential to assess patients’ learning needs and incorporate those learning needs into discharge plans.Keywords: Learning; Perception; Coronary Artery Bypass; Education; Patients; Nurses; Oman.