Countess Maria Theodora Paulina (Dora) Pejačević (Hungarian: Gróf verőczei Pejácsevich Mária Theodóra Paulina "Dóra", 10 September 1885 – 5 March 1923) was a Croatian composer and a member of the Pejačević noble family. She was one of the composers to introduce the orchestral song to Croatian music and her Symphony in F-sharp minor is considered by scholars to be the first modern symphony in Croatian music.

Maria Theodora Paulina Sophie von Lumbe, poznata kao Dora Pejačević (Budimpešta, 10. rujna 1885. – München, 5. ožujka 1923.), bila je hrvatska skladateljica i violinistica, rodom iz slavonske grofovske obitelji Pejačević.