List of best-selling light novels

A light novel (ライトノベル, raito noberu) is a type of popular literature novel from Japan usually classified as young adult fiction, generally targeting teens to twenties or older. The abbreviation of "raito noberu" is ranobe (ラノベ) or, in English, LN. The average length of a light novel is about 50,000 words.

The following is a list of the best-selling Japanese light novel series to date in terms of the number of collected volumes sold. All series in this list have at least 5 million copies in circulation. This list is limited to Japanese lightnovels only. The series are listed according to the highest sales or circulation (copies in print) estimate of their collected volumes as reported in reliable sources unless indicated otherwise. Ties are arranged in alphabetical order.