The Dexaroi (Ancient Greek: Δεξάροι) were an ancient Chaonian tribe living under Mount Amyron. In ancient literature the Dexari are mentioned only by the ancient Greek writer Hecataeus of Miletus (6th century BC), cited by Stephanus of Byzantium (6th century AD). The Dexaroi were the northernmost tribe that belonged to the Chaonian group, one of the three major North-Western Greek-speaking tribes of Epirus.

Mount Amyron has been identified by some modern scholars with Mount Tomorr, in present-day Albania. The mountain was probably located in a region that in Roman times was called Dassaretis. The Dexaroi have been supposedly equated with the Dassaretii by some scholars, hence they are also referred to as Dassaretae in some modern sources. However, all these hypothetical connections remain uncertain.

The name "Dexari" is mentioned only in a fragment of ancient Greek writer Hecataeus of Miletus (6th century BC) writing his Geography of the World, in which he showed a detailed knowledge of the region of Epirus and surrounding areas. This fragment has been preserved in an excerpt from the toponymic dictionary Ethnica (Εθνικά) by Stephanus of Byzantium (6th century AD), under the heading "Δέξαροι". The fragment stated that the Dexari, a tribe of the Chaones, were adjacent to the Enchelei:

"Δέξαροι, ἔθνος Χαόνων, τοῖς Ἐγχελέαις προσεχεῖς, Ἑκαταῖος Εὐρώπῃ. ὑπὸ Ἄμυρον ὄρος οἰκοῦν."

"The Dexari, a Chaonian people neighbouring upon the Enchelei, as is stated by Hecataeus in his book about Europe, who lived under Mount Amyron."

They are most probably also mentioned in a 5th-4th century BC inscription in Dodona as Δεξαιρεᾶται Dexaireatai. In the Periplus of Pseudo-Scylax (4th century BC) some scholars have corrected Καρία Karia with Δεξαρία Dexaria, thus introducing a toponym that is derived from the ethnonym Dexaroi, hapax in Hecataeus' fragment.

Some scholars (Hammond, Wilkes, Weber) consider the Dexari mentioned by Hetataeus in the 6th century BC the same people as the Dassaretae mentioned in Roman times, other scholars (Kunstman and Thiergen, Winnifrith, Eichner, Campbell) consider them two distinct tribes. The best sources provided by ancient authors for the name Dassaretae date to the period of Roman conquest, during the years between the first Roman raid into Illyricum in 228 BC and the Roman settlement of 167 BC. Whether or not they were same tribe still represents a significant and insufficiently answered question.

According to Kunstmann and Thiergen, the tribal name Dexar-, like Dessar- / Dassar-, contains the Illyrian root *daksa/dassa ("water, sea"), since in Illyrian the x/ks (ξ) is phonetically equivalent with ss (σσ). In both tribal names the same root is attached to the suffix -ar. The term δάξα, daksa, was also recorded by Hesychius as an Epirote word meaning sea. It resembles the Illyrian personal names Dazos and Dassius and is also reflected in the toponym of Daksa island and the river Ardaxanos, which is mentioned by Polybius (2nd century BC) in the hinterland of modern Durrës and Lezhë. Weber states that the name Dassaretae is Illyrian and that it shares the same root with the name Dexari. According to N. G. L. Hammond, the Dexari are an archaic form of the later mentioned Dassaretii. Keramopoullos (1953) argues the name Dassaretae is connected to Greek: Διός όρος-ορείται (Dios oros-oreitai, "Mountain of Zeus").