The study examined organisational culture and the changing face of disciplinary procedure with focus on the Nigeria public service. The objective of the study was to ascertain factors encouraging indiscipline in the Nigeria public service. The theory X and Theory Y was adopted as the theoretical framework for the study. The study assumed that indiscipline has constituted a huge cog to organisational culture in the Nigeria public service. Secondary data were obtained from indexes of scholars’ works on relevant literature through journal articles, books and papers. The study adopted the descriptive pattern of analyses. Findings revealed that despite several governmental efforts to preserve and promote public service rules in Nigeria, certain factors have constituted a changing face to the observance of organisational culture and disciplinary procedures in Nigeria public service and these factors include but not limited to excessive corruption, federal character principle, poor working condition, socio-economic and political factors. The paper suggested the way forward to curbing these challenges and concluded that government policies and reforms in the public services are still the best route to achieving high organisational performance and sustainable culture.