Valentyn Sadovsky (Ukrainian: Валентин Васильович Садовський) was a politician, scientist, journalist, economist of Ukraine.

Sadovsky was born in village of Plishchyn (today in Shepetivka Raion), Volhynia Governorate in a family of priest.

After the Hetman coup-d'etat, he participated in peace negotiations with the Russian delegation, while being a member of the underground "Ukrainian National Union".

He was charged with publishing anti-Soviet works, which could have resulted up to 10 years imprisonment or capital punishment.

Over two years Sadovsky was awaiting for the sentence before being killed by criminals of the Lukyanivska Prison on 24 November 1947.