Abstract: Purpose: In this competitive era, organizations are continuously facing an economic and social changing environment in which the importance of human resource managers is highly recognized. Such changes are comprised of rapid technological change, demanding customers, increasing competitive era, delivery of products on time, complex management, acquisitions, and higher authorities' demand to enhance the maximum competitive advantages for the organization. Therefore, the managers are keen to know which human resources management practices will effectively achieve efficient organizational competitiveness. This research paper aims to investigate the best human resource management practices to achieve organizational competitiveness. The objectives were to examine different factors affecting human resources practices in the Kingdom Bahrain and determine the association between best human resource management practices and the organizational competitiveness among the employees working in the oil sector organization in the Kingdom of Bahrain. Design/Methodology/Approach: This empirical study is processed. Due to the Covid 19 situation, the data collection was collected using the random sampling method by choosing a sample of around 300 employees by contacting them and asking them a set of questions without mentioning their names or identities. Data were analyzed using Microsoft Excel to code the responses. The coded responses were exported to SPSS, and descriptive statistics and linear regression analysis run on a statistical package for social sciences (SPSS 25) to analyze the results. This study is a cross-sectional study that only focused on collecting data from employees working in the oil sector organization of the Kingdom of Bahrain. Findings: Results showed that the independent variables recruitment and selection, reward systems, job design and training and development were positively and significantly correlated to the dependent variable of organizational competitiveness. This study provides empirical evidence for policymakers to adopt sustainable human resource management practices to achieve an extended competitive advantage. Originality/value: This study may impact the literature on human resource management and organizational behavior specifically for the Kingdom of Bahrain. It may assist the administration, practitioners of human resources management and development, and organizational behavior in considering, designing and evaluating new or existing strategies to achieve organizational competitiveness. Keywords: Organizational Competitiveness, Recruitment and Selection, Reward systems, Job Design, Training and Development, Kingdom of Bahrain, Oil Sector.