The former Diocese of Odense () was a Roman Catholic diocese in Denmark which included the islands of Funen, Langeland, Tåsinge, Lolland, Falster, Als, and Ærø.
The former Diocese of Odense, located in Denmark, included the islands of Funen, Langeland, Tåsinge, Lolland, Falster, Als, and Ærø.