This study aimed to analyze and explain the effectiveness of leadership based on Pela Gandong values at the Population and Civil Registration Office of Ambon City. Data analysis was carried out descriptively quantitatively with criteria for interpreting percentage scores in determining choices and making final decisions based on Average Achievement (CRR) and values/indexes to set priorities using sociometric calculations, namely the calculation of the Preferred Status Index (ISP). The results showed that leadership effectiveness is based on Pela Gandong values which include carrying out tasks, understanding regulations, standards, and work procedures, using equipment, organization of tasks, security training and safety, and requiring costs in carrying out tasks. Furthermore, the availability of organizational resources at the Population and Civil Registration Office of Ambon City is in a strong category. The effectiveness of leadership based on Pela Gandong values regarding carrying out public service tasks (CRR 72% with ISP 3) can be increased priority to V, understanding regulations, standards, and work procedures in public services (CRR 70% with ISP 2.91) can be increased priority to III, utilizing equipment in public services (CRR 62% with ISP 2.58) can be increased priority to I, the organization carries out public service tasks (CRR 71% with ISP 2,95) can be increased priority to IV, security training and safety security in public services (CRR 70% with ISP 2.91) can be increased priority to III, requiring costs in carrying out public services (CRR 71% with ISP 2.95) can be increased priority to IV, and the availability of organizational resources in public services (CRR 67% with ISP 2.79) can be increased priority to II. Thus, if strengthening and improvement are carried out properly, and their sustainability is guaranteed, it will obtain maximum results for the progress of public services at the Population and Civil Registration Office of Ambon City. Leaders also need to apply the leadership values of the Ambon people, which are reflected in the values of Pela Gandong, which motivate leaders to carry out service tasks to the community. 
 
 Received: 24 June 2023 / Accepted: 22 August 2023 / Published: 5 September 2023