The emergence of the concept of school well-being provides a reference to the ideal school concept that is able to promote the well-being of its students. However, implementing this concept is not easy. School well-being is the subjective assessment by students of how their school meets their basic needs. These basic needs dimensions include having, loving, being, and health. Incorporating perceived social support and optimism into school well-being is a positive action. This study aims to examine the simultaneous role of perceived social support and optimism on school well-being among adolescents. The population of this study consisted of adolescents in the city of Karawang, with a sample of 203 individuals. The sampling technique used was quota sampling. The data in this study were analyzed using multiple linear regression. The results of this study indicate that the relationship between perceived social support, optimism, and school well-being is found to be significant with a significance value of 0.000. R-square value is 0.235, meaning that 23.5% of the variation in school well-being is influenced by perceived social support and optimism, while the remaining 76.5% is due to other unmeasured variables in this study. Keywords: Adolescents, optimism, perceived social support, school well-being Hadirnya konsep school well-being memberikan referensi mengenai konsep sekolah ideal yang mampu menyejahterakan siswanya. Namun demikian untuk mengimplementasikan konsep tersebut tidaklah mudah. School well-being ialah penilaian yang berisifat subjektif oleh siswa terhadap bagaimana sekolahnya yang akan memenuhi kebutuhan dasarnya. Dimensi kebutuhan dasar tersebut ialah having, loving, being, dan health. Memasukkan dukungan sosial dan optimisme ke dalam school well-being merupakan tindakan positif. Penelitian ini bertujuan untuk menguji peran simultan dukungan sosial dan optimismee terhadap school well-being pada remaja. Populasi dalam penelitian ini merupakan remaja di kota Karawang dengan sampel sebanyak 203 orang. Adapun teknik pengambilan sampel adalah dengan metode quota sampling. Data dianalisis dengan menggunakan Regresi linier berganda. Hasil penelitian ini menunjukkan bahwa dukungan sosial dan optimisme berpengaruh terhadap school well-being dengan nilai signifikansi sebesar 0,000 < 0,05. Nilai Rsquare sebesar 0,235; artinya sebesar 23,5% variasi pada school well being dipengaruhi oleh dukungan sosial dan optimisme, sisanya sebesar 76,5% disebabkan oleh variabel lain yang tidak diukur dalam penelitian ini. Kata Kunci: Dukungan social, optimisme, remaja, school well-being