This paper investigates the impact of tourism flows on demand for large regional and city theatres in Austria over the period from 1972 to 2011 (39 years). The results are obtained by applying an aggregated theatre demand function for both residents and tourists. The elasticity of theatre attendance in response to tourism is estimated along with other standard demand variables such as ticket price and income. The quality factors and theatre-specific effects are also included. The tourism flows variables are derived using detailed data set on tourist arrivals and their overnight counts, and they are also split between domestic and foreign tourists. To measure the impact of tourism flows on theatre demand, three alternative theatre markets specifications are considered. The total elasticity of attendance per capita in response to tourism is estimated between 15 and 20 %, indicating that increasing the number of arrivals by two tourists per resident in the relevant market would generate an increase in theatre attendance by 581-680 thousand visitors per year. The role of tourism flows is found to be particularly important for attendance at opera, operetta and musicals as opposed to attendance at drama performances. The analysis also reveals that foreign, non-German tourists have a positive impact on theatre attendance, whereas domestic tourists do not contribute significantly to higher demand for Austrian theatres.