Kurmali or Kudmali is an Indo-Aryan language classified as belonging to the Bihari group of languages spoken in eastern India. As a trade dialect, it is also known as Panchpargania, for the "five parganas" of the region it covers in Jharkhand. Kurmali language is spoken by around 550,000 people mainly in fringe regions of Jharkhand, Odisha and West Bengal, also a sizeable population speak Kurmali in Assam tea valleys. Kurmali is one of the demanded languages for enlisting in Eighth Schedule to the Constitution of India.

The Indo-Aryan languages are a branch of the Indo-Iranian languages in the Indo-European language family. As of the early 21st century, they have more than 800 million speakers, primarily concentrated in Bangladesh, India, Pakistan, Sri Lanka, Maldives and Nepal. Moreover, apart from the Indian subcontinent, large immigrant and expatriate Indo-Aryan–speaking communities live in Northwestern Europe, Western Asia, North America, the Caribbean, Southeast Africa, Polynesia and Australia, along with several million speakers of Romani languages primarily concentrated in Southeastern Europe. There are over 200 known Indo-Aryan languages.