The House of Czetwertyński or Chetvertynsky (also Czetwertyński-Światopełk and Sviatopolk-Chetvertynsky) is a Polish princely family of Ruthenian origin that was founded under the Crown of the Kingdom of Poland in modern-day Volhynia Ukraine.

[1] The family takes its name from the village of Chetvertnia, Lutsk county, in modern-day Manevychi Raion, Volyn Oblast.

[2] Over time, the family were Polonized and Catholicized, but some members remained adherent to the Eastern Orthodox religion.

[2] Prince Stepan Sviatopolk-Chetvertynsky (1575–1659) played a key role in re-establishing the Ukrainian Orthodox Church of the Ecumenical Patriarchate of Constantinople in 1620.

[2] After Antoni Stanisław Czetwertyński-Światopełk was lynched in 1794 by Polish nationals in Warsaw during the Kościuszko Uprising,[4] his family resettled in Saint Petersburg, in the Russian Empire.