达尔马提亚（克罗地亚文：Dalmacija，英文：Dalmatia），克罗地亚南部、亚得里亚海东岸的地区，东接波斯尼亚和黑塞哥维那。以屋大维时代罗马的达尔马提亚命名。

此地区由西北的拉布岛横跨至东南方的科托尔湾，还包括亚得里亚海东岸的各个岛屿，如 赫瓦尔岛、维斯岛、科尔丘拉岛、布拉奇岛、帕岛和姆列特岛等。

斯普利特、杜布罗夫尼克是本区的主要都市。

Dalmatia (Croatian:Dalmacija, [dǎlmaːt͡sija]; see names in other languages) is one of the four historical regions of Croatia, alongside Croatia proper, Slavonia, and Istria.

Dalmatia is a narrow coastal region, stretching from island of Rab in the north to the Bay of Kotor in the south. The hinterland (Dalmatian Zagora) ranges in width from fifty kilometres in the north, to just a few kilometres in the south; it is mostly covered by the rugged Dinaric Mountains. 79 islands (and about 500 islets) run parallel to the coast, the largest (in Dalmatia) being Brač, Pag and Hvar. The largest city is Split, followed by Zadar, Dubrovnik, and Šibenik.