Yumnak is a family name (Sagei) In the Meetei society, and they speak Meetei Language. The name Yamunak as Pronounced "yoom-naak". Ethnic yumnaks are used in the Meetei /Meitei community including the Meitei Pangal and Meitei Bamon (Manipuri Brahmin).
The Meitei community lie largely in the Northeast India, mainly in Manipur,[1] Next in Assam,[2] Tripura[3] and a few in Mizoram, Nagaland, Meghalaya. Some live in Bangladesh[4] and Myanmar.[5]