ABSTRAK Pendahuluan Diaper rash atau ruam popok merupakan ruam merah terang yang disebabkan oleh iritasi dari kulit terkena urin atau kotoran yang berlangsung lama di bagian mana saja dibawah popok anak. Untuk menyembuhkan diaper rash (ruam popok) dapat diberikan terapi nonfarmakologi yaitu extra virgin olive oil (EVOO). Manfaat pemberian extra virgin olive oil (EVOO) yang mengandung fenol dan asam esensial dapat melawan ruam pada pantat bayi. Tujuan penelitian untuk mengetahui pemberian Extra Virgin Olive Oil (EVOO) dalam mengatasi diaper rash (ruam popok) pada bayi usia 1-12 bulan. Metode penelitian yang akan digunakan adalah deskripsi observasional dengan pendekatan studi kasus. Subyek penelitian dipilih berdasarkan kriteria inklusi dan eksklusi sebanyak 2 subyek. Penelitian dilakukan dengan setiap hari dengan mengolesi Extra Virgin Olive Oil (EVOO) sebanyak 4 kali selama ≤ 7 hari. Pengumpulan data menggunakan lembar pengkajian, observasi, SOP, dan dokumentasi foto. Hasil penelitian dan observasi tentang penanganan diaper rash (ruam popok) didapatkan bahwa pada subyek pertama dinyatakan sembuh dalam 4 hari dan pada subyek kedua dinyatakan sembuh dalam 7 hari. Dari hasil penelitian terbukti extra virgin olive oil (EVOO) dapat menyembuhkan diaper rash (ruam popok). Dengan dilakukannya penelitian ini diharapkan bayi usia 1-12 bulan yang mengalami diaper rash (ruam popok) dapat memberikan extra virgin olive oil (EVOO) untuk menyembuhkan diaper rash (ruam popok). Kata kunci : Bayi usia 1-12 bulan, diaper rash, extra virgin olive oil (EVOO) ABSTRACT Introduction Diaper rash is bright red rash caused by irritation of the skin exposed to urine or feces that lasted long in any part of a child's diaper below. To heal diaper rash can be given non pharmacological therapy with extra virgin olive oil (EVOO). The health benefits of extra virgin olive oil (EVOO) containing phenol and essential acids can fight a rash on a baby's bottom. The aim of the research is to find out the provision of Extra Virgin Olive Oil (EVOO) in dealing with diaper rash in infants aged 1-12 months. The research method to be used is the description of the observational case study approach. Subjects were selected based on inclusion and exclusion criteria as much as 2 subjects. Research carried out by every day by smearing Extra Virgin Olive Oil (EVOO) 4 times for ≤ 7 days. Collecting data using sheet assessment, observation, SOP, and photo documentation. Results of research and observations on the handling of diaper rash found that in the first subject was declared cured in 4 days and on the second subject was declared cured within 7 days. From the results of the study proved to be extra virgin olive oil (EVOO) can heal diaper rash. By doing this research is expected to infants aged 1-12 months who have diaper rash can provide extra virgin olive oil (EVOO) to heal diaper rash. Keywords: Infants aged 1-12 months, diaper rash, extra virgin olive oil (EVOO)