In a bid to potentially offer better understanding on how pluralism is manifested and managed, studies have
veered off from bureaucracy, which is regarded as the conventional but ill-suited, to gaining insight on an
uncertain and dynamic organisations. These studies however remain fragmented. The purpose of this study is
therefore to investigate the impact of organisational pluralism on leadership effectiveness among private and
public organisations in Nigeria. The study was anchored on multi-paradigm perspective also known as
complexity theory. Using cross-sectional descriptive survey research design, 200 participants comprising 103
males and 97 females with a mean age of 35.27 and standard deviation of 9.87 were randomly selected from
four organisations through questionnaire. Drawing from leading management and leadership literature, the
study tested a hypothesis with the aid of multiple regression analysis. The result indicated a significant joint
effect of age, gender, working experience, tribal identification, religious affiliation, educational qualification,
marital status, and position on leadership effectiveness. It was concluded among others that the most viable
way of handling diversity of interests and the increasing pluralism in organisations is by employing
leadership effectiveness. The study therefore recommends that leaders should take advantage of the plurality
in the organisations to grow and become effective in the art of leadership.