This study investigates the impact of Mindfulness–Based Cognitive Therapy (MBCT) on depressed outpatients of the state Hospital in Oyo state Ibadan, Nigeria. The sample comprised of 32 men and women 18 years and above. The instrument used for screening was Beck Scale for Suicide Ideation (BSS) while Beck Depression Inventory–II (BDI–II) was used for data collection. The research design adopted for this study was Pre-Post experimental design. Four research hypotheses were formulated and tested at 0.05 level of significant. Analysis of covariance (ANCOVA) was the statistical tool employed for processing the data collected. Depressive symptoms and diagnostic status were assessed before and after the treatment phase. Self-reported symptoms of depression decreased from severe to mild levels in MBCT group while no significant decrease was recorded in the control group. This study provides further evidence that MBCT can be used successfully to reduce Symptoms of depression among the sufferer.