Like Istanbul, Çanakkale province has a European (Thrace) and an Asian (Anatolia) part. The European part is the Gallipoli (Gelibolu) peninsula. The Asian part is mostly the historic region of Troad in Anatolia. The Dardanelles strait is between them. It connects the Sea of Marmara and the Aegean Sea.
Çanakkale is the biggest district of the province. The European and Asian parts of the province were connected to each other with the completion of the Çanakkale 1915 Bridge in March 2022.