OBJECTIVES: to evaluate the detection rate and treatment outcomes among TB (tuberculosis) patients in Al-Najaf TB center and compare these outcomes with WHO (World Health Organization) targets. METHODOLOGY: Cohort study was conducted during the period between January 2012 to December 2012, for patients attending TB center in AL-Najaf Province. The collected data were analyzed for treatment and retreatment outcomes, treatment and retreatment success rates. RESULTS: 162 TB cases were enrolled in the present study, and the patients were distributed according to age into seven age groups. The young and middle age groups (15-24 and 25-34 years interval) showed higher frequencies of cases (20.4% and 23.5%, respectively) than other age groups. The male to female ratio was 1.7:1. The case detection rate was 34.6% as only 56 out of 162 cases were sputum-smear positive for AFB (acid-fast bacilli), and they were followed in the present study. Treatment outcomes-cured, completed treatment, defaulter, treatment failure, died and transfer out of 56 patients are 69.6%, 9%, 16%, 3.6%, 0.0% and 1.8%, respectively, whereas retreatment outcomes-cured, completed treatment, defaulter, treatment failure, died and transfer out are 50%, 0.0%, 50%, 0.0%, 0.0%, 0.0%, respectively. The DOTS (directly observed treatment short course) treatment success rate 75% and the retreatment success rate was 49%. CONCLUSION: All the estimations of detection rate, success rate of treatment and retreatment outcomes were lower than that of WHO targets. RECOMMENDATIONS: Improving success rate through overcoming obstacles that prevent regular drug supply, execution regular surveys to evaluate the performance of DOTS programme, community-based health education programmes about the role of DOTS strategy in improving treatment success rate.