Introduction
For centuries, the Huns have occupied a near-mythic place in European history. They appeared suddenly in Roman accounts, reshaped politics across the continent, and then disappeared just as quickly after Attila's death. That dramatic rise and fall left behind a famous historical puzzle: who were the Huns, and where did they come from?
Ancient DNA is now helping answer that question with far more precision than written sources alone ever could. A 2025 PNAS study, along with earlier genomic work, suggests that the Huns were not a single biological population migrating intact from inner Asia to Europe. Instead, the evidence points to a small number of families with deep East Asian roots, likely connected to the Xiongnu elite of Mongolia, embedded within a much larger and mostly European population in Attila's realm.
Key Takeaways
- Ancient DNA shows that the Hun empire was genetically diverse, not a single homogeneous people.
- A few Hun-period individuals in the Carpathian Basin had strong East Asian ancestry, and some shared recent genetic links with Xiongnu imperial elite burials in Mongolia.
- Most people buried in Hun-period contexts in Europe were genetically similar to earlier local groups, including Carpathian Sarmatians, Germanic groups, and other regional populations.
- The evidence supports a model of elite mobility and political expansion, rather than a mass migration of an entire eastern population into Europe.
- The Huns may preserve a real genealogical thread to the Xiongnu, but that connection appears limited to a few lineages, not the whole empire.
From Rome's Fear to a Historical Mystery
In the late 4th century, the Huns entered the historical record with extraordinary force. Roman observers described a mounted people crossing the Volga, defeating the Alans and Goths, and then pushing deep into Europe. Within a few decades they extracted tribute from Constantinople, invaded Gaul and Italy under Attila, and built a political confederation that stretched across the steppe and the Carpathian Basin.
Yet the Huns left behind very little that historians usually rely on. They had no surviving texts of their own, no enduring cities, and only a small vocabulary preserved in outside sources. That scarcity of direct evidence gave rise to a long-running debate over origin. Were the Huns connected to the Xiongnu, the nomadic empire that fought Han China centuries earlier? Or was that similarity in names mostly coincidence?
The question matters because it touches on a larger issue in ancient history: how to distinguish cultural continuity, political inheritance, and actual biological descent. Ancient DNA is especially useful here because it can test whether a claimed historical link reflects deep family relationships, recent migration, or later myth-making.
What Earlier DNA Studies Already Suggested
The first genomic work on the Eurasian steppe gave researchers a broader framework. A 2018 study by de Barros Damgaard and colleagues showed that the Xiongnu were themselves a mixed population. They carried ancestry from East Asian groups of the Mongolian plateau as well as western steppe groups related to the Scythians and Saka. In other words, even the Xiongnu were not a single origin population frozen in time.
That same pattern became important for later mobile groups. As Xiongnu-related ancestry spread westward, it continued to mix with local steppe populations. People identified archaeologically as Huns in Central Asia, including those from the 2nd to 5th centuries, often looked like blends of Saka and Sarmatian-like ancestry with varying East Asian input.
Work focused on the Carpathian Basin then brought the discussion closer to Attila's world. Studies of Hun, Avar, and Conquest-period nomads in Hungary found a small number of clearly eastern individuals, alongside others who looked genetically local or western. Those results already hinted that the Huns were not a single undifferentiated mass, but the sample sizes were too small to settle the larger historical question.
The 2025 PNAS Study and the Xiongnu Link
The most important new evidence came in 2025, when a team led by Guido Alberto Gnecchi-Ruscone, Zsófia Rácz, and Zuzana Hofmanová analyzed 370 ancient genomes spanning eight centuries. Their samples came from Xiongnu-period burials in Mongolia, graves from Kazakhstan, and Hun and post-Hun period burials in the Carpathian Basin.
The study produced two major conclusions. First, the authors found no evidence for a large eastern or steppe descent community within the Hun- and post-Hun-period populations of the Carpathian Basin. Second, a small number of individuals did show a deeper and more specific connection: they shared long identical-by-descent (IBD) DNA segments with members of the late Xiongnu imperial elite in Mongolia.
That detail is crucial. IBD segments are long stretches of DNA inherited from relatively recent common ancestors. They are not broad population signals, they are evidence of genealogy. In practical terms, this means that some elite families in Attila's Europe really did descend from eastern steppe lineages connected to the late Xiongnu world.
The study therefore refined an old hypothesis rather than simply confirming or rejecting it. De Guignes, the 18th-century scholar who first proposed a Hunnic-Xiongnu connection, was partly right. But the connection seems to run through a small number of lineages, not through the entire Hun population.
What the Carpathian Basin Genomes Show
Because the 2025 study used Global25-based modeling for comparison across individuals, it is possible to look more closely at ancestry variation within the Hun period itself. The 49 Hun-period individuals from the Carpathian Basin form a strikingly uneven distribution.
Most of them carried very little East Asian ancestry. In fact, 36 of 49 individuals, or about 73 percent, had less than 5 percent Northeast Asian ancestry. Many had none that the model could detect. These individuals fit comfortably within the regional populations already present in the Carpathian Basin, including local Carpathian groups, Germanic-related people, and Sarmatian descendants.
Another 8 individuals fell in the intermediate range of 5 to 20 percent Northeast Asian ancestry. These likely represent local families with one or more eastern ancestors several generations back. That pattern is consistent with gradual admixture, not a massive eastern replacement.
Only 5 individuals exceeded 20 percent Northeast Asian ancestry. Of those, one was a genuine mixed individual with roughly one-third eastern ancestry. The other four were far more unusual. They were not just admixed locals, but people whose genetic profiles placed them very close to the eastern source populations themselves.
This is the most important population-level result in the whole dataset. The Hun political world in Europe was real and powerful, but genetically it was mostly built from populations already in or near the Carpathian Basin. The eastern element was concentrated in a minority, not spread across the whole society.
Who Were the Strongly Eastern Individuals?
The four most East Asian-rich individuals in the Carpathian Basin are especially informative. Their genomes carried between 73 and 84 percent Northeast Asian ancestry, which is essentially the same range seen in the late Xiongnu samples from Mongolia.
These individuals are not just statistical outliers. Their ancestry profiles point to direct migration from eastern steppe populations or very close descendants of such groups. In one case, a woman buried at Pusztataskony in Hungary in the first half of the 5th century had gold earrings and an artificially elongated skull, both signs of high status or distinctive cultural practice in some steppe contexts. Her genome also shared the kind of eastern signal seen in elite Xiongnu-linked burials.
Another individual, HUN001, had low coverage, meaning the DNA data were limited. Even so, the eastern signal was so strong that technical noise cannot plausibly explain it away. Taken together, these individuals show that some people in Hun-period Europe were not merely influenced by steppe culture, they were biological descendants of eastern steppe lineages.
But that is still not the same as saying the whole Hunnic population came from Mongolia. These four genomes look like an elite or near-elite eastern thread within a much broader, mixed confederation.
What This Means for the History of the Huns
The DNA evidence fits a model of confederation and elite transmission rather than total population replacement. The Huns in Europe appear to have been a coalition, with leadership and prestige lineages carrying eastern steppe ancestry, while many followers, clients, and incorporated communities came from the populations already living in the Pontic steppe and the Carpathian Basin.
That model makes historical sense. Steppe empires often expanded through incorporation, alliance, tribute, and military patronage. They did not need to move an entire nation intact from one end of Eurasia to the other. A small number of elite families, if politically powerful enough, could impose a new identity over much larger and more diverse subject populations.
This also explains why the Huns can be both historically connected to the Xiongnu and locally European at the same time. The genetic link to the Xiongnu is real, but it appears limited to particular lineages. The broader Hunnic world in Europe was genetically heterogeneous and deeply intertwined with the peoples it ruled.
Practical Implications
For readers interested in ancient history, this study is a reminder that labels like “Huns” often describe political and cultural coalitions, not single biological populations. When historians or geneticists ask where a people came from, the answer may involve multiple layers, including ancestry, migration, identity, and elite succession. Ancient DNA can reveal those layers, but only when it is interpreted alongside archaeology and history.
For anyone reading claims about the Huns, the key takeaway is to be precise. It is reasonable to say that some Hunnic elites in Europe descended from Xiongnu-related lineages. It is not accurate to say that all Huns were Xiongnu, or that Attila's empire was genetically East Asian as a whole. The best-supported picture is more complex and, in many ways, more interesting.
Conclusion
Ancient DNA has transformed the debate over the origins of the Huns. The latest evidence shows that Attila's empire included a small number of families with direct genetic ties to the Xiongnu elite of Mongolia, but the great majority of Hun-period people in the Carpathian Basin were not recent eastern migrants. The Huns were a diverse imperial formation, not a single migrating people, and their story is best understood as a mix of deep eastern ancestry, local European populations, and steppe political power.
References / Further Reading
- Gnecchi-Ruscone, G. A., Rácz, Z., Hofmanová, Z., et al. (2025). PNAS study on ancient genomes from the Xiongnu and Hun period populations.
- de Barros Damgaard, P., et al. (2018). Genomic survey of the Eurasian steppe.
- Neparáczki, E., et al. (2019). Y chromosome analysis of Hun, Avar, and Conquest-period nomads.
- Maróti, Z., et al. (2022). Whole-genome study of Hun, Avar, and Conquest-period populations in the Carpathian Basin.
