%O Program Keluarga Berencana (KB) merupakan upaya strategis pemerintah Kota Serang dalam mengendalikan laju pertumbuhan penduduk dan mewujudkan kesejahteraan keluarga. Salah satu metode kontrasepsi yang ditujukan bagi pria adalah Metode Operasi Pria (MOP), namun tingkat partisipasi pria dalam program ini masih tergolong rendah. Penelitian ini bertujuan untuk mengetahui bentuk partisipasi pria dalam pelaksanaan Program KB MOP di Kecamatan Serang Kota Serang. Penelitian ini menggunakan pendekatan kualitatif dengan teknik pengumpulan data melalui wawancara mendalam, dokumentasi, dan studi pustaka. Analisis data dilakukan menggunakan model interaktif Miles dan Huberman, dengan uji keabsahan data melalui triangulasi dan member check. Teori partisipasi yang digunakan adalah teori Cohen dan Uphoff, yang meliputi dimensi partisipasi dalam pengambilan keputusan, pelaksanaan, pengambilan manfaat, dan evaluasi. Hasil penelitian menunjukkan bahwa partisipasi pria dalam program KB MOP masih bersifat individual dan belum melibatkan partisipasi kolektif secara optimal. Rendahnya pengetahuan tentang kesehatan reproduksi, anggapan bahwa KB merupakan tanggung jawab perempuan, kurang optimalnya sosialisasi, minimnya peran tokoh masyarakat, serta belum tersedianya mekanisme evaluasi berbasis umpan balik menjadi faktor penghambat partisipasi pria. Berdasarkan temuan tersebut, peneliti merekomendasikan perlunya penguatan sosialisasi yang lebih berfokus pada pria, pengembangan penyuluhan berbasis pasangan, peningkatan kualitas pelayanan MOP yang ramah pria, optimalisasi peran akseptor sebagai agen informasi, serta penguatan mekanisme evaluasi partisipatif dan peningkatan kapasitas SDM PLKB agar implementasi Program KB MOP dapat berjalan lebih efektif dan berkelanjutan. %L eprintuntirta57110 %D 2026 %I UNIVERSITAS SULTAN AGENG TIRTAYASA %A SHABRINA RAHAYU %K Partisipasi pria, Program Keluarga Berencana, Metode Operasi Pria (MOP), implementasi kebijakan. Male participation, Family Planning Program, Male Operative Method (MOP), policy implementation. %X The Family Planning Program (KB) is a strategic effort by the Serang City Government to control population growth and promote family welfare. One contraceptive method intended for men is the Male Operative Method (MOP) or vasectomy; however, the level of male participation in this program remains relatively low. This study aims to identify the forms of male participation in the implementation of the MOP Family Planning Program in Serang District, Serang City. This research employs a qualitative approach, with data collected through in-depth interviews, documentation, and literature review. Data analysis was conducted using the interactive model of Miles and Huberman, while data validity was ensured through triangulation and member checking. The participation theory applied in this study is the theory proposed by Cohen and Uphoff, which includes the dimensions of participation in decision-making, implementation, benefit-taking, and evaluation. The findings indicate that male participation in the MOP Family Planning Program is still largely individual in nature and has not yet optimally involved collective participation. Limited knowledge of reproductive health, the perception that family planning is the responsibility of women, suboptimal socialization, the minimal role of community leaders, and the absence of a feedback-based evaluation mechanism are key factors hindering male participation. Based on these findings, the study recommends strengthening male-focused socialization, developing couple-based counseling, improving the quality of male-friendly MOP services, optimizing the role of MOP acceptors as information agents, and enhancing participatory evaluation mechanisms as well as the capacity of Family Planning Field Officers (PLKB), so that the implementation of the MOP Family Planning Program can be more effective and sustainable. %T PARTISIPASI PRIA PADA PELAKSANAAN PROGRAM KELUARGA BERENCANA DI KECAMATAN SERANG KOTA SERANG ( Studi Kasus tentang Metode Operasi Vasektomi )