The Trocmii or Trocmi were one of the three ancient tribes of Galatia

Galatia

Ancient Galatia was an area in the highlands of central Anatolia in modern Turkey. Galatia was named for the immigrant Gauls from Thrace , who settled here and became its ruling caste in the 3rd century BC, following the Gallic invasion of the Balkans in 279 BC. It has been called the "Gallia" of...

 in central Asia Minor

Asia Minor

Asia Minor is a geographical location at the westernmost protrusion of Asia, also called Anatolia, and corresponds to the western two thirds of the Asian part of Turkey...

, together with the Tolistobogii

Tolistobogii

Tolistobogii is the name used by the Roman historian, Livy, for one of the three ancient Celtic tribes of Galatia in central Asia Minor, together with the Trocmi and Tectosages...

 and Tectosages, part of the possible Celtic group who moved from Macedonia

Macedonia (region)

Macedonia is a geographical and historical region of the Balkan peninsula in southeastern Europe. Its boundaries have changed considerably over time, but nowadays the region is considered to include parts of five Balkan countries: Greece, the Republic of Macedonia, Bulgaria, Albania, Serbia, as...

 into Asia Minor

Asia Minor

Asia Minor is a geographical location at the westernmost protrusion of Asia, also called Anatolia, and corresponds to the western two thirds of the Asian part of Turkey...

in the early third century BCE .
All three tribes were beaten in 189 BCE by the Roman consul, Gnaeus Manlius Vulso at the battles of Mt. Olympus and Mt. Magaba .