Haplogroup I may refer to:
*
Haplogroup I (mtDNA)
Haplogroup I is a human mitochondrial DNA (mtDNA) haplogroup. It is believed to have originated about 21,000 years ago, during the Last Glacial Maximum (LGM) period in West Asia (; ; ). The haplogroup is unusual in that it is now widely distrib ...
, a human mitochondrial DNA (mtDNA) haplogroup
*
Haplogroup I (Y-DNA)
Haplogroup I (M170) is a Y-chromosome DNA haplogroup. It is a subgroup of haplogroup IJ, which itself is a derivative of the haplogroup IJK. Subclades I1 and I2 can be found in most present-day European populations, with peaks in some Nort ...
, a human Y-chromosome (Y-DNA) haplogroup
{{Disambig
.PNG.html){kind=link}