The purpose of this paper is to explore teachers’ attitudes, perceptions and self-efficacy regarding students with special educational needs in Slovenia and Kosovo, as well as to identify the similarities and differences between the two education systems in terms of inclusive practices. Quantitative data were collected from a sample of teachers working in grades 1–5 of primary schools in Slovenia (n = 258) and Kosovo (n = 255). The data were gathered using the Sentiments, Attitudes and Concerns about Inclusive Education scale and the Teacher Efficacy for Inclusive Practice scale and analysed using SPSS version 21.0. The findings indicate higher means of samples in both Slovenia and Kosovo in negative sentiments, attitudes and perceptions regarding inclusive education, while statistically significant differences were identified in attitudes and other factors, such as age, gender or teaching experience with students with special educational needs. Teachers in Slovenia and Kosovo scored higher in self-efficacy, which is negatively correlated at a significant level with sentiments, attitudes and perceptions regarding inclusive education.