Glukhovsky, who was already labeled a "foreign agent," was convicted of spreading "false information" about the Russian army and of denouncing Moscow's Ukraine offensive on social media.
He was sentenced under the law passed shortly after President Vladimir Putin sent troops to Ukraine in February 2022 and which has since been often used to quell criticism of the offensive.
Glukhovsky has written dystopian novels — his most famous being "Metro 2033" — about totalitarian societies and he has consistently condemned the war against Ukraine.
Supporting Ukraine
For example, after a Russian attack on Odessa late last month, he posted a black square with the word "Odessa" along with a heart sign on Instagram, and on the anniversary of the full-scale conflict in February, he wrote on social media: "Just as a year ago, I am absolutely convinced that this war is as devastating for Russia and our people as it is deadly and destructive for the nation that I love. namely Ukraine."
Glukhovsky has also written posts in support of the already imprisoned opposition politician Alexei Navalny, who was sentenced last week to a 19-year prison sentence.