The equites Dalmatae (Latin for "Dalmatian horsemen") were a class of cavalry in the Late Roman army.
At the beginning of the fifth century, the Notitia Dignitatum lists 48 units of equites Dalmatae or cunei Dalmatarum deployed throughout the Roman Empire (31 in the West; 17 in the East).
[3] The titular component probably refers to the geographical region in which these units were raised and/or originally stationed, namely the provinces of the western Balkans which formed the core of Gallienus’ truncated empire.
The equites Dalmatae appear to have contributed to the victories of Claudius II (r. 268–270 AD) over the Goths in 269, and they participated in Aurelian’s reconquest of Palmyra in 272–3.
[4] Subsequently, probably under the Tetrarchy or Constantine I, most of the equites Dalmatae were permanently assigned to the garrisons of frontier provinces.