The FantLab's book of the year award (Russian: Книга года по версии Фантлаба) are a set of awards given annually for the best science fiction or fantasy works published in Russia during previous year.

It is organized and overseen by society of reader's registered at FantLab site, the awards are given each year.

In 2007 as popularity of the site grew and when number of daily visitors reached 4 thousand a day, site decided to implement a voting system that allowed nomination of popular and best reviewed books.

Works are eligible for an award if they were published in Russian in the prior calendar year.

There are no written rules as to which works qualify as science fiction or fantasy, and the decision of eligibility in that regard is left up to the voters.