The acceleration of digital transformation, artificial intelligence (AI), and data-driven governance has fundamentally reshaped public administration, requiring governments to redefine human capital strategies to address increasingly complex governance challenges. Traditional civil service systems that primarily emphasize administrative efficiency are no longer sufficient to support adaptive, innovative, and citizen-centered public organizations. This study aims to develop a conceptual framework for human capital transformation that supports the development of future-ready civil servants. A conceptual research design was employed using a systematic literature review and conceptual synthesis approach. Relevant studies on human capital theory, strategic human resource management, digital governance, organizational agility, competency development, and public sector innovation published between 2016 and 2026 were critically analyzed to identify key dimensions and their interrelationships. The synthesis reveals that successful human capital transformation is driven by five interconnected dimensions: strategic leadership, digital capability, organizational agility, continuous learning and competency development, and performance-oriented governance. These dimensions collectively strengthen institutional resilience, improve public service quality, and enhance governments' capacity to generate sustainable public value in an increasingly digital environment. The study contributes theoretically by integrating fragmented perspectives on human capital and public sector transformation into a unified conceptual framework. Practically, it provides strategic guidance for policymakers and public managers in redesigning competency-based recruitment, leadership development, learning systems, and performance management to build adaptive, innovative, and future-ready civil servants capable of supporting sustainable public sector reform.