Lena Mukhina also Lena Muchina (Russian: ????? ???????????? ??????, Yelena Vladimirovna Mukhina; 21 November 1924 in Ufa – 5 August 1991 in Moscow) was a Russian woman, who wrote her experiences as teenage schoolgirl during the Siege of Leningrad in her diary, pouring out her hopes and fears.
On 25 May 1942 the diary ended, probably as she was evacuated.
She lived in Moscow until her death in 1991.
An unknown donor handed the diary to a state archive in 1962; it was discovered there by Sergei Yarov.
It has been published in Russia (??????? ??? ????????? ???????), Spain (El diario de Lena), Germany (Lenas Tagebuch), Poland (Dziennik czasu blokady).