The Hmong-Mien languages are a group of languages spoken primarily in Southeast Asia, particularly by the Hmong and Mien ethnic groups. These languages are part of the larger Sino-Tibetan language family and are known for their unique phonetic features, including tonal distinctions. Hmong-Mien languages are primarily found in countries like China, Vietnam, Laos, and Thailand. There are several distinct languages within this group, with Hmong and Mien being the most widely recognized. The languages have rich oral traditions and are integral to the cultural identity of their speakers.