Haplogroup R2 is a human mitochondrial DNA haplogroup that is primarily found in South Asia, particularly in regions like India and Pakistan. It is part of the larger R haplogroup family, which is known for its diverse lineage and widespread distribution across Eurasia. R2 is believed to have originated around 20,000 to 30,000 years ago. This haplogroup is significant for studying human migration and ancestry, as it provides insights into the genetic history of populations in South Asia. Genetic markers associated with R2 can help researchers trace the movement of ancient peoples and understand the genetic diversity within the region.