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from r/mapmaking
https://www.reddit.com/r/mapmaking/comments/990dka/handdrawn_and_painted_map_of_the_peoples_of/Hand-drawn and painted map of the peoples of Europe in Antiquity, as described by the geographer Ptolemy (c. 100-160, c.e.) [OC]
This map is an attempt at depicting the various tribes and ethno-linguistic groups that were mentioned in Ptolemy's "Geographia." (Obviously it isn't the same as a political map, since by this time the Romans would have been administering much of the land here)

edit: I ran out of paint before I could do a legend but here's what the colors correspond to!
In France, Spain, Portugal, Britain, Ireland, Germany, Switzerland, Italy:
Light Green: Celts
Dark Green: Turdetani
Yellow: Iberians
Darker Yellow: Para-celtic groups like the Lusitani and the Vettones
Pink: Aquitanians
Teal: Ligures
Purple: Germanic peoples
Cream: Rhaetians
Orange: Etruscans
Red: Italic peoples
Darker Pink: Veneti
In the Balkans, Near East, and North Africa:
Light Blue: Greeks
Darker Blue: Illyrians
Reddish Brown: Daco-Thracian peoples
Mint: Anatolians
Gold: Armenians
Magenta: Phoenicians / Carthaginians
Light Pink: Libyco-Berber peoples
Indigo: Egyptians
Light Purple: Aramaic-speaking peoples
Dark Brown: Hebrews
In Northeastern Europe:
Brown: Bastarnae
Ice Blue: Venedae
Goldenrod: Aestii
Orange: Sarmatae
Light Brown: Fenni
Olive Green: Northwest Caucasian peoples (e.g., Abkhazians)
Light Pink: Georgians
Grey (Maeotae, Tauri, peoples on Sicily, Sardinia, and the Baleares): Unknown