Nikolai Grigoryevich Alexandrov (Russian: Николай Григорьевич Александров, 21 December 1870, [new style: January 2, 1871], — 3 November 1930) was a Russian stage actor, theatre director and drama teacher, associated with Moscow Art Theatre.
He started his career at the Moscow Nemchinov's Theaters in 1887 and in 1896-1898 had a stint with the Society of Art and Literature as a director assistant and actor.
In 1898 he joined the Stanislavski troupe, and for the rest of his life worked at the Moscow Art Theater.
Among the parts that he was the first performer of, were Yasha (The Cherry Orchard, 1904), Pig (The Blue Bird, 1908), Korobkin (Revizor, 1908), Artemyev (The Living Corpse, 1911).
According to Vladimir Nemirovich-Danchenko, Alexandrov's greatest gift was that of a director's assistant, and as such he "was unequalled probably in the whole history of Russian theatre.