Grand Duke Vyacheslav Konstantinovich of Russia (1862-1879) was the youngest son of Grand Duke Konstantin Nikolayevich and Grand Duchess Alexandra Iosifovna. Nicknamed Slava, he died at sixteen.
Actually the short form for Russian speakers is "Slava". "Slavik" is not so common, it can be used only in a very informal context, by close friends for eg.
Vyacheslav Yalov is an 18 year old who lost his mother to a Russian missile and has to look after his younger sisters and brothers.
― Anonymous User 6/9/2022
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Vyacheslav Tishchenko (1861–1941) was a Russian chemist.
― Anonymous User 5/12/2019
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Is a Ukrainian analog for Czech\Slovak\Polish WENCESLAS, VÌNCESLAV or VACLAV, which all do mean "more glory". Vyacheslav is clearly derived from Slovak „viac slávny“ („ve¾mi slávny“ => "very glorious")
I don't like Vyacheslav because it's weird. Nobody calls anyone "Vyacheslav" it's dumb. Every "Vyacheslav" that I know goes by "Slavik" which doesn't sound so bad.