Haplogroup J may refer to:
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Haplogroup J (mtDNA)
Haplogroup J is a human mitochondrial DNA (mtDNA) haplogroup. The clade derives from the haplogroup JT, which also gave rise to haplogroup T. In his book ''The Seven Daughters of Eve'', Bryan Sykes named the originator of this mtDNA haplogroup ...
, a human mitochondrial DNA (mtDNA) haplogroup
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Haplogroup J (Y-DNA)
Haplogroup J-M304, also known as J,ISOGGbr> ''Y-DNA Haplogroup J and its Subclades - 2016'' (2 February 2016). is a human Y-chromosome DNA haplogroup. It is believed to have evolved in Western Asia. The clade spread from there during the Neol ...
, a human Y-chromosome (Y-DNA) haplogroup
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