The credit for developing and expanding the concept of Development Administration primarily goes to Paul H. Appleby. In the mid-20th century, he emphasized the need for an administrative framework that could effectively implement development policies in newly independent nations. Appleby highlighted the importance of participatory governance, social equity, and efficient resource management in achieving developmental goals. His work laid the foundation for understanding how administrative practices can be aligned with developmental objectives, making a significant impact on public administration theories. Appleby’s insights continue to influence contemporary discussions on development and governance, emphasizing the role of effective administration in fostering sustainable growth.