The purpose of this study was to develop and validate the Inclusive School Climate Scale (ISCS) in order to assess how schools in Oman are building capacity for inclusive education successful practices. The 23-item ISCS was developed and administered to 287 teachers from schools in Oman. The results showed three main factors that reflected the ability of schools to build capacity for inclusive practices and create an inclusive climate for students. Reliability and validity analysis of the ISCS suggested that the scale provides a reliable measure. Implications for cross-cultural examination of the ISCS are discussed.