The Pontic Greeks (Pontic: Ρωμαίοι, Ρωμιοί; Turkish: Pontus Rumları or Karadeniz Rumları; Greek: Πόντιοι, romanized: Póndii or Ελληνοπόντιοι, romanized: Ellinopóndii; Georgian: პონტოელი ბერძნები, romanized: P’ont’oeli Berdznebi), also Pontian Greeks or simply Pontians, are an ethnically Greek group indigenous to the region of Pontus, in northeastern Anatolia (in Turkey). Many later migrated to other parts of Eastern Anatolia, to the former Russian province of Kars Oblast in the Transcaucasus, and to Georgia in various waves between the Ottoman conquest of the Empire of Trebizond in 1461 and the Russo-Turkish War of 1828–1829. Those from southern Russia, Ukraine, and Crimea are often referred to as "Northern Pontic [Greeks]", in contrast to those from "South Pontus", which strictly speaking is Pontus proper. Those from Georgia, northeastern Anatolia, and the former Russian Caucasus are in contemporary Greek academic circles often referred to as "Eastern Pontic [Greeks]" or as Caucasian Greeks, but also include the Turkic-speaking Urums.

Pontic Greeks traditionally speak the Pontic Greek dialect, a distinct form of the standard Greek language which, due to the remoteness of Pontus, has undergone linguistic evolution distinct from that of the rest of the Greek world. The Pontic Greeks had a continuous presence in the region of Pontus (modern-day northeastern Turkey), Georgia, and Eastern Anatolia from at least 700 BC until the Greek genocide and the population exchange with Turkey in 1923. Today, most Pontic Greeks live in Greece, especially in and around Thessaloniki in Greek Macedonia.