西斯拉夫人，斯拉夫人的一支，主要在中欧平原地区活动，主要为波兰人、捷克人、斯洛伐克人、索布人等。东斯拉夫人主要信奉东正教，西斯拉夫人主要信奉天主教，而南斯拉夫人则大约各占一半。

The West Slavs are Slavic peoples speaking West Slavic languages. These are the current Slovaks, Czechs, Kashubians, Poles and Sorbs. The northern or Lechitic group includes, along with Polish, the Kashubian and extinct Polabian and Pomeranian languages. The languages of Upper and Lower Lusatia have features in common with both the Lechitic and the Czecho-Slovak group.