- Source: Leonid Nikolaev (disambiguation)
Leonid Nikolaev or Nikolayev may refer to:
Leonid Nikolayev (pianist) (1878–1942), Russian composer and academic
Leonid Nikolaev (1904–1934), Russian assassin of Sergei Kirov
Leonid Nikolaev (conductor) (1940–2009), Russian musicologist and academic
Leonid Nikolayev (1984–2015), Russian member of dissident art group Voina
