Background . Tuberculosis is a historically stigmatized disease and the stigma associated with it affects the institution, community, and interpersonal factors. Therefore, understanding tuberculosis-related perceived stigma has importance in improving quality of the patients. Objective . The aim of this study was to assess prevalence and factors associated with perceived stigma among patients with tuberculosis attending Wolaita Sodo University Referral Hospital, Ethiopia. Methods . Institution based cross-sectional study was conducted among a total of 417 tuberculosis patients who had treatment follow-up at TB clinics and were recruited for the study. Systematic random sampling technique was used to recruit study participants. A 12-item perceived TB stigma scale was used to assess tuberculosis-related perceived stigma. In addition, Oslo social support scale was used to assess social support related factors. Results . Prevalence of tuberculosis-related perceived stigma by using perceived tuberculosis stigma scale was 42.4%. Patients who had pulmonary TB [AOR=2.49, (95% CI: 1.24, 4.87)], being intensive phase category [AOR=1.42, (95% CI: 1.19, 2.58)], TB/HIV coinfection [AOR= 3.54, (95% CI: 1.37, 9.12)], poor social support [AOR=2.45, (95% CI: 1.18, 5.09)], and using substance (alcohol, khat and cigarette) [AOR=1.78, (95% CI: 1.28, 3.17)] were more likely to have perceived TB stigma when compared to their counter parts. Conclusion . Health education programs should be conducted to reduce TB stigma and improve patients’ compliance.