The pseudonym Vilén was used by Vladimir Ilich Lenin while hiding in Finland

Erik Vilén, silver-medalist at the 1924 Summer Olympics

Jari Vilén, Finnish Minister of Foreign Trade (2002–2003)

Vilen Galstyan Armenian actor

Vilen (in reference to Lenin) was a popular first-name in Armenia (also short for Vileekyan) and other Soviet republics:

Vilen Kolouta an Armenian cinematographer/sound mixer,

An asteroid discovered by the Soviet astronomer Tamara Mikhailovna Smirnova was named 4514 Vilen