Since the mid-1990s, the use of electronic (e-) procurement aspect of electronic commerce in the different industrial sectors has been on the increase across the world. However, the extent of its adoption in the Nigerian building industry is not clearly understood. This study investigated e-Procurement use in the Nigeria building industry with a view to improving understanding of the extent of its adoption in this country. The research involved a questionnaire survey of 213 respondents drawn from consulting and contracting firms, client organizations in the private sector and government institutions conducted in Nigeria in 2015. The data were analyzed using descriptive statistics, Chi-square test and multiple regression analysis. The result shows that the main users of e-Procurement were quantity surveyors and construction/project managers in consulting firms; and that there was a significant relationship between professional roles and e-Procurement use in the Nigerian building industry. The most frequently used e-Procurement technologies for announcing/receiving invitation to tenders; exchanging project briefs and specifications; submitting/receiving tenders/bids and sourcing for materials and equipment were e-mails and websites. Age of organizations, top management perception of the benefits of e-Procurement and sector of procurement experience had the most significant influence on e-Procurement adoption in the study area. The study concludes that the private sector was taking the lead in e-Procurement use and that only established organizations whose top management understands the benefits of e-Procurement would most likely adopt it in the Nigerian building industry. To cite this document: Egidario B. Aduwo, Eziyi O. Ibem, Emmanuel A. Ayo-Vaughan, Uwakonye O. Uwakonye, and James D. Owolabi, E-PROCUREMENT USE IN THE NIGERIAN BUILDING INDUSTRY, International Journal of Electronic Commerce Studies, Vol.8, No.2, pp.180-215, 2017. Permanent link to this document: http://dx.doi.org/10.7903/ijecs.1524