The research investigated the correlation between human resource planning practices and the organizational performance of telecom companies in Delta State. The study aimed to achieve several objectives, including determining the relationship between workforce forecasting and organizational performance, assessing the connection between recruitment and selection processes and organizational performance, examining the impact of employee training and development on organizational performance, and evaluating the relationship between employee retention strategies and overall organizational performance. The research employed a cross-sectional research design, with data collected from 169 Human Resources executives within the telecom companies. The collected data were analyzed using descriptive statistics, correlation analysis, and multiple regressions. The findings indicated a significant and positive relationship between various aspects of human resources planning (including workforce forecasting, recruitment and selection, training and development, and employee retention) and organizational performance. Based on these results, it is recommended that HR managers in telecom companies align their human resource planning strategies with organizational goals, regularly evaluate these plans, and implement measures to retain skilled employees, thereby contributing to enhanced organizational performance.