Objective: The aim was to identify the level of knowledge, attitude, and practice (KAP) in patients with type 2 diabetes (T2D) and chronic kidney disease (CKD) at Sigatoka Subdivisional Hospital (SSH) in 2018 since no studies have been done on this issue so far in Fiji. Methods: A quantitative, cross-sectional study including 225 patients was carried out July 1, 2018, through August 31, 2018, using a validated self-structured questionnaire. Fijians, aged 30 years or above, with confirmed T2D and CKD who were attending the Special Outpatient Department (SOPD) at SSH, were included in the study using a purposive sampling method to identify eligible participants. Data was gathered by a questionnaire that covered questions related to each aspect of KAP. Results: The relation of native Fijians (i- Taukei) to Fijians of Indian descent (FID) was approximately 1:1. The majority of participants had high levels of knowledge, attitude, and practice (61.8%, 63.6%, and 88.4%, respectively). However, a few areas of low knowledge were evident, such as the relation between high blood pressure and renal status in people with diabetes and the need for renal transplant in end-stage kidney disease (ESKD) abroad. Low attitude was apparent for the impact and management of diabetic kidney disease (DKD). Low practice was evident regarding clinic attendance, self-monitoring, and opting for non-medical treatment. Conclusion: The majority of T2D patients with CKD had a high level of knowledge, but weaknesses were observed in the self-management of CKD and clinic attendance. This information should be considered by clinicians and policy-makers to improve management and treatment of CKD in T2D.