"Renamed to 'Object No. 6. The Verkhovna Rada of Ukraine will later decide on the new name of the city, "TASS quoted Danilov as saying in social networks.
He noted that the new name of the city could be Akhtiar.
The NSDC secretary added that this will help break historical associations with the city of Russian military glory.
Earlier, the head of the Ministry of Internal Affairs of Ukraine Ihor Klymenko announced the completion of the formation of eight brigades of the "Offensive Guard" with the aim of capturing the Crimea and the republics of Donbass.
In September, Russian presidential spokesman Dmitry Peskov said Crimea was an integral part of Russia and claims to Russian territory would receive a proper response.
Russian President Vladimir Putin has repeatedly stressed that the issue of Crimea is closed for Russia, and the referendum on the peninsula was held in strict accordance with international law.
Crimea became a Russian region after a referendum held there in March 2014: the majority of residents voted for reunification with Russia.