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How is the Ainu language different from Japanese?

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Japanese calligraphy — Japanese language Record of a haiku exchange on *kaishi* writing paper by Japanese poet Bashō and one of his pupils in the teacher's own handwriting, 17th century, from a hanging scroll (ink on paper).

The Ainu language is fundamentally different from Japanese because it is a language isolate, meaning it has no demonstrable genealogical relationship to Japanese or any other known language family.12

In contrast, Japanese belongs to the Japonic language family, which also includes the Ryukyuan languages and possibly the Hachijō language. While Japanese is characterized by a specific grammatical structure—such as being a consistent subject-object-verb (SOV) language that utilizes enclitic particles to mark case and relies heavily on honorific forms to index social relationships—Ainu does not share this linguistic ancestry.23

Historically, the traditional Ainu language was spoken by the indigenous Ainu people across Hokkaido, Sakhalin, and the Kuril Islands. By the early 21st century, it had been almost entirely supplanted by Japanese due to long-term colonization and forced assimilation policies. Efforts to revitalize the language began in the 1980s, marking a significant shift in the recognition and protection of Ainu culture.14