World Opera Day 2025. Discover the operatic gems available on stage+ with our curated selection of highlights on youtube World opera day is celebrated on october 25th, the birthday of georges bizet and johann strauss ii, composers of possibly the world’s most famous opera and operetta.

World opera day is celebrated on 25 october, the birthday of georges bizet and johann strauss ii, composers of possibly the world’s most famous opera and operetta. This day brings together connoisseurs of opera art and creators.