While not exclusively titled "Yakuza," this massive action series frequently features the Japanese mafia as primary antagonists or allies in later books. Crime Action, Thriller.

серия книг Якудза - Дмитрий Силлов - Литрес

There are several popular book series in the "Yakuza" genre available in Russian, ranging from gritty military fiction to urban fantasy and "litRPG" styles. Below are the most notable series and where you can find them.

Specific chapters and books (like Podmyali i Yakudza ) deal directly with Yakuza involvement in Russia and Japan.