Valentin Fyodorovich Bulgakov (Russian: Валентин Фёдорович Булгаков; 25 November 1886 – 22 September 1966) was the last secretary of Leo Tolstoy and his biographer.

The article contained new material on the wedding of Fyodor Dostoyevsky with Maria Dmitrievna Isayeva held in Kuznetsk in 1857.

He was a personal witness to the lives of the Tolstoy family at Yasnaya Polyana during the last period of the writer's life.

The first reaction of the Tolstoyan Movement to the outbreak of World War I was the appeal "Wake up, all people are brothers!"

Nowhere is this truth so clearly confirmed, as now, when, intoxicated, and excessively proud of their false science, their foreign culture and their civilization of the machine, people of the 20th century have suddenly realized the true stage of its development: this step is no higher than that which our ancestors were at in the days of Attila and Genghis Khan.

[2]In October, Bulgakov continued circulating the appeal, collecting signatures and posting copies which were confiscated by the Okhrana.

Pavel Ivanovich Biryukov received in 1914 the text of the appeal and subsequently published it in the Swiss magazine Demain ("Tomorrow"), edited by Henri Guilbaud.

Negotiations for help began with overseas organizations, including the American Relief Administration and polar explorer Fridtjof Nansen, the head of the executive committee of "International Aid to Russia."

However, experienced in confronting the authorities Bulgakov made sure that on 18 September 1921 the newspaper "Communist Labor" ran a refutation of the false accusations and published an excerpt from his letter to the editor.

He conducted extensive lecturing activities in Europe in which he promoted creativity, Tolstoyism and the non-violent struggle against British colonialism, led by Mahatma Gandhi.

In 1932 he initiated that the community of Doukhobor, which at the end of the 19th century had emigrated from Russia to Canada, was accepted by the organization.

He corresponded with prominent cultural and intellectual figures such as Romain Rolland, Rabindranath Tagore, Albert Einstein and Nicholas Roerich.

The museum gathered a rich collection of Russian art, that had been scattered in many countries around the world including paintings, antiquities, manuscripts and books.

When at the beginning of the Second World War the German Wehrmacht marched into Prague, Bulgakov was arrested on suspicion of being a communist and later sent to an internment camp in Weißenburg in Bayern (Bavaria) called "ILAG XIII Wülzburg".

Valentin Bulgakov is one of the main characters (played by James McAvoy) in The Last Station (2009), a film about the last year in the life of Tolstoy.