Politkovskaya, who gained international recognition for her criticism of the Kremlin and reports of military atrocities against civilians in the troubled Caucasus republic of Chechnya, was gunned down in an elevator in her Moscow apartment building in October 2006.
"On August 30, on the day of Anna Politkovskaya's birthday, we want to honor her memory and again stress her importance for Russia," said Russia's human rights activist, Lev Ponomaryov.
The meeting, which will be held in Triumfalnaya Square, is being organized by the Moscow Helsinki Group, the For Human Rights movement and the United Civil Front group, led by Kremlin critic Garry Kasparov.
Around 300 people, including journalists from Novaya Gazeta, the newspaper that Anna Politkovskaya was working for at the time of her murder in 2006, as well as those mentioned in her books and articles are expected to gather for the rally.
A spokesman for the Investigative Committee of the Prosecutor General's Office said the criminal case on Politkovskaya's murder is will be referred to the court in the near future.
In the criminal investigation three men have been charged with involvement in the murder and a Federal Security Service (FSB) officer with abuse of office. A separate probe has been launched against Rustam Makhmudov, the man suspected of carrying out the shooting. Investigators earlier said he was still in hiding.
"The case is at its completion stage. Currently, the suspects and their lawyers are considering the case files," he said adding: "After that, the prosecutors will approve the indictment and the case will be sent for trial."
Russia remains one of the world's most dangerous countries for reporters. According to data from the international organization Reporters Without Borders, 21 journalists were murdered in Russia between 2000 and 2007.
