Kontostavlos Surname: Y-DNA Haplogroup
Published genetics research or a documented case study links the surname Kontostavlos to a specific Y-DNA paternal-line haplogroup.
J-L930 (Deep Maniot modal lineage, subclade of J2a-M172)
Clade J2a
Also spelled: Kondostavli, Kontostavli
Peer-reviewed Nature-portfolio study of 102 Deep Maniot men found ~80% carry J-M172 (J2a), with the Mani-specific subclade J-L930 accounting for ~50% of all lineages; clan-based social structure is dated to ~1350-1600 CE. Study authors highlight the Kontostavlos/Kondostavli clan (first documented 1514) as a case where all tested male-line members share a single Y-line within the J-L930 cluster with a common ancestor dated to ~1479 CE, matching the clan's own oral migration history. The population-level J-L930 finding is confirmed directly in the peer-reviewed text/abstract; the specific Kontostavlos case-study figures are drawn from science-press coverage of the same peer-reviewed study (the published article anonymizes most individual clan identifiers in its public tables), hence Medium rather than High confidence.
Source: Davranoglou L.R. et al. (2026) "Uniparental analysis of Deep Maniot Greeks reveals genetic continuity from the pre-Medieval era." Communications Biology 9:157. doi:10.1038/s42003-026-09597-9
How to read this. A surname match means some people with that surname, in a specific study or family record, were found to share a haplogroup, most likely due to a shared patrilineal ancestor generations back. It is not proof that you personally carry that haplogroup: surnames change through adoption, remarriage, non-paternity events, and independent origin of the same name in different families. For your own confirmed haplogroup, test your DNA with our HaploAI Y-DNA/mtDNA predictor.
Confirm your real haplogroup from your raw DNA
A surname link is a hint, not a certainty. Upload your raw DNA file and our HaploAI engine predicts your actual Y-DNA and mtDNA haplogroups directly from your genome.