Lack of academic integrity has frustrated the attainment of educational objectives especially in tertiary institutions in recent times. Perhaps, one of the most prevalent fraudulent practice among students, academics and researchers today is plagiarism. This paper examines the concept, nature and intricacies of plagiarism. It notes the devastating effects of plagiarism on the individual, academic institutions and the society at large. The paper argues that libraries by their assigned and inherent functions have a strategic role to play in curbing plagiarism. The roles include awareness creation, teaching of referencing and citation skills, information literacy programmes among others. The paper concludes with further recommendations for dealing with the menace of plagiarism.