This study examined the impact of manpower development on organisational performance in Northern Noodles Limited. The study was motivated by the growing recognition that effective workforce development practices are essential for enhancing productivity, profitability, and overall organisational efficiency in manufacturing firms. Specifically, the study investigated how manpower development practices such as training and development, mentoring, job rotation, and career development influence organisational performance. The study adopted a descriptive survey research design, while primary data were collected through structured questionnaires administered to employees of the organisation. A census approach was adopted, covering the entire population of 316 employees, out of which 293 valid responses were retrieved and analysed using Statistical Package for Social Sciences (SPSS) version 25. Descriptive statistics, Pearson Product Moment Correlation, simple linear regression, and Chi-square tests were employed for data analysis. The findings revealed that manpower development has a strong positive and statistically significant relationship with organisational performance. The correlation result showed a strong association between manpower development and organisational performance (r = 0.612, p < 0.01), while the regression analysis indicated that manpower development significantly predicts organisational performance, accounting for 37.4% of the variation in performance outcomes (R² = 0.374). The Chi-square result further confirmed a significant association between manpower development and organisational performance. The study concluded that manpower development is a strategic driver of organisational performance. Consequently, the study recommended that management should invest continuously in employee training, mentoring, career development, and performance evaluation systems to improve productivity, efficiency, and long-term organisational competitiveness.