(Νυμφόδωρος), a citizen of Abdera, whose sister married Sitalces, king of Thrace. The Athenians, who had previously regarded Nymphodorus as their enemy, made him their proxenus in B. C. 431, and, through his mediation, obtained the alliance of Sitalces, for which they were anxious, and conferred the freedom of their city on Sadocus, Sitalces' son. Nymphodorus also brought about a reconciliation between the Athenians and Perdiccas, king of Macedonia, and persuaded them to restore to him the town of Therma, which they had taken in B. C. 432 (see Thuc. 1.61). In B. C. 430 Nymphodorus aided in the seizure, at Bisanthe, of ARISTEUS and the other ambassadors, who were on their way to ask aid of the Persian king against the Athenians. (Hdt. 7.137; Thuc. 2.29, 67; comp. Arist. Atc. 145.)