The aim of this essay is to gain knowledge about attitudes towards the use of different varieties of English in the classroom from the perspective of seven English teachers in Swedish upper secondary school. The study was carried out through interviews with teachers from different upper secondary schools in Sweden. Qualitative interviews were used to gain information from the teachers. The results showed that the language varieties most of the teachers used were American English and British English, which had to do with what variety they were more exposed to. When asked about their students’ choices of language variety in the classroom, the teachers said that they used American English because of the frequent presence of the variety in films and television. The teachers worked with language varieties in the classroom by incorporating different varieties into the teaching using films, clips or listening comprehensions with speakers of, for example, Indian English or Australian English. Regarding the significance of working with language varieties in the classroom, the teachers said that it could develop knowledge and understanding of other people and that it could expand knowledge about the English-speaking world. In conclusion, the results showed that, even though American English and British English are the most commonly used English varieties in Swedish upper secondary schools, there are many ways teachers try to incorporate other language varieties to help students develop their English.