Juliusz Słowacki Theatre is a 19th-century Eclectic theatre-opera house in the heart of Kraków, Poland, and a UNESCO World Heritage Site. Erected in 1893, it was modeled after some of the best European Baroque and Eclectic theatres such as the Palais Garnier in Paris. The theatre was named after Polish poet Juliusz Słowacki in 1909 and in 1978 was inscribed alongside the Historic Centre of Kraków into the World Heritage Register.

Juliusz Słowacki was a Polish Romantic poet. He is considered one of the "Three Bards" of Polish literature — a major figure in the Polish Romantic period, and the father of modern Polish drama. His works often feature elements of Slavic pagan traditions, Polish history, mysticism and orientalism. His style includes the employment of neologisms and irony. His primary genre was the drama, but he also wrote lyric poetry. His most popular works include the dramas Kordian and Balladyna and the poems Beniowski, Testament mój and Anhelli.