Following the meeting the two leaders will hold a press-conference, after which Merkel will return to Germany.
The German chancellor attended the Victory Day parade in 2005 and 2010.
Merkel chose to arrive in the Russian capital a day later, on Sunday. On that day, the German chancellor will lay a wreath at the Tomb of the Unknown Soldier, a war memorial located at the Kremlin Wall.
"We cannot close the book on our history," Merkel said a video message, published on May 2. "It is important for me to lay a wreath on May 10 together with the Russian president in remembrance of the millions who died during the Second World War and for whom Germany is responsible," she added.