Hamadar Thar wani babban yanki ne mai busasshiyar da ke arewa maso yammacin Indiya da gabashin Pakistan. Ana kuma san shi da Babban Hamadar Indiyawa, kuma tana da faɗin fili kusan murabba'in kilomita 200,000. Kalmar "Thar" ta samo asali ne daga kalmar Hindi "thul," wanda ke nufin "wuri mai bushe da bakararre." Hamadar Thar tana da yanayin kasa mai yashi, matsanancin zafi, da ciyayi maras yawa, kuma gida ne ga nau'ikan tsiro da namun daji iri-iri da suka dace da yanayin muhallinsa.