What languages were spoken by Genghis Khan?

Genghis Khan, born Temüjin, was a Mongolian leader who lived in the 12th and 13th centuries. He likely spoke Mongolian, specifically the Khalkha dialect, which is the language of the Khalkha Mongols, the largest Mongolian group.

While it's not certain, he may have also spoken Turkic languages like Uyghur, which was the language of the administration at the time. This is because the Uyghur script was used by the Mongol Empire for administration and writing.

It's worth noting that at the time of Genghis Khan, there was no single, standardized Mongolian language. Different tribes and regions had their own dialects and variations.