Viktor Alexandrovich Krylov (Russian: Виктор Александрович Крылов; 2 February 1838 – 13 March 1908) was a Russian playwright (who occasionally used the pen name Viktor Alexandrov), theatre critic, librettist, Imperial Theatres official and one of the major contributors to the Brockhaus and Efron Encyclopedic Dictionary.

In 1862 he published (in Severnaya Ptchela) his first large critical essay on Griboyedov's Woe from Wit and the production of it in the Alexandrinsky Theatre which impressed the head of Sankt-Peterburgskiye Vedomosti Valentin Korsh enough to invite Krylov to contribute regularly to this newspaper's theatre section, which he did in 1863—1865.

Krylov authored more than thirty original plays and almost a hundred lesser works, including re-makes and translations, concentrating on comedy and vaudeville.

His best-known non-fiction work was Stolby (Pillars, 1868) which told the story of massive wrongdoings by the landlords, abusing the legal rights of peasant communities.

This man loves theatre and I trust him, even if I do not like his plays," Anton Chekhov wrote in a letter to Alexey Suvorin.