Abstract Background and Aims Haemodialysis (HD) represents the most common renal replacement therapy for end-stage renal disease worldwide. Despite recent advances in HD the health-related quality of life (HRQoL) should be monitored in conjunction with clinical variables to optimize a comprehensive treatment. Method From June to July 2022, all patients from 47 clinics were included. Among other key relevant clinical variables, HRQoL was assessed by using the Kidney Disease Quality of Life Short Form (KDQOL-SF™ 1.3).It`s generic part is summarised in the physical component summary (PCS) and mental component summary (MCS). The specific part evaluates 11 domains: symptom/problem list; effects of kidney disease on daily life; burden of kidney disease; work status; cognitive function; quality of social interactions; sexual function; sleep; social support; dialysis staff encouragement; and patient satisfaction. All scores range from 0 (worst) to 100 (best). To ensure comparability of results, mean ± SD values are outlined, even though non-parametric tests were used to test associations. Results A total of 3,595 patients (67.3% male) completed the KDQOL (out of 4259 HD patients treated during study period). Most of them (67.18%) were over 60yo of age, and 65.67% had a severe comorbidity index score. In addition, 50.54% had a native AV fistula and only 3.92% were incident HD. PCS scores reported were higher in over 75yo (47.68 ± 10.63) rather than normative population (40.16 ± 11.62), indicating an overall good physical function. However, MCS values (33.17 ± 9.36) were indicative of substantial impact. Gender differences were noted across almost all disease-specific and generic domains (all p < 0.05). Severe comorbidity scores were associated with lower scores in certain renal specific domains and MCS. Finally, incident HD patients reported lower satisfaction and poorer perceived overall health (p-values = 0.001). Conclusion Although PCS scores reported were reasonable, a remarkable impact on mental health was found. Moreover, a differential impact of patient's HRQoL was captured based on gender and other variables highlighting the need of individualised evaluation and management of HD patients.