Asociația Futball Klub Csíkszereda Miercurea Ciuc: (Hungarian: [ˈt͡ʃiːksɛrɛdɒ], Romanian: [ˈmjerkure̯a ˈtʃjuk]), commonly known as Csíkszereda Miercurea Ciuc or simply Csíkszereda, is a Romanian professional football club based in Miercurea Ciuc, Harghita County.