<b>Competitive Intelligence and Organizationa Performance in Selected Deposit Money Banks in South East, Nigeria</b> This research investigates competitive intelligence and organizational performance in Nigeria with a particular reference to deposit money banks in South East, Nigeria. The invisibility of competitive intelligence units in these banks necessitated this research. The objectives of this study are To empirically investigate the influence of competitor intelligence on market share and the effect of customer intelligence on quality service delivery. Survey research design was adopted. The data generated were analyzed using Simple Regression Analysis. The results revealed that competitor intelligence had a significant positive influence on market share and also customer intelligence had a significant positive effect on quality service delivery. The study recommended that Banks should establish competitive intelligence departments that will frequently help them gather relevant and timely information about their competitors and customers so as to enable them formulate strategies and make informed and effective decisions at all times. Competitive intelligence, competitor intelligence, customer intelligence, market share quality service delivery and organizational performance 105-122 Issue-6 Volume-1 Ndubuisi-Okolo Purity Uzoamaka | Theresa Anigbogu | Ike Ijeoma Chidimma.