Studies have extensively discussed what characterizes news media sources as alternative. However, this study focuses on users and the range of news sources they perceive as alternative media. We expect that these audience perceptions vary between countries, depending on the level of media fragmentation and polarization. We use original survey data from five countries (Denmark ¼ 2,667 respondents; Italy ¼ 2,121; Poland ¼ 2,536; Switzerland ¼ 1,859; United States ¼ 3,493) and investigate (i) what sources are perceived by users as alternative and (ii) whether these perceptions differ among users embedded in more or less fragmented-polarized media environments. Our results reveal that users have distinctive types of media in mind when reporting alternative media consumption, fanning out on a spectrum from traditional mass media outlets to self-proclaimed alternative news media. Interestingly, despite a greater supply of alternative news sources and an overall higher propensity to indicate the use of alternative news sources, citizens in more fragmented-polarized media environments are more likely to indicate using mass media outlets as alternative news media. We conclude from these findings that media fragmentation and polarization in a political information environment contribute to the convergence of the alternative-tomainstream spectrum in the eyes of their audiences.