斯拉夫人（英语：Slavic peoples）是欧洲各民族和语言集团中人数最多的之一，约有三亿四千万人。主要分布于东欧和中欧，语言属于斯拉夫语族。

斯拉夫人发源于今波兰东南部维斯杜拉河上游一带，于一世纪时开始向外迁徙，六世纪前后，斯拉夫人出现在东欧平原上，那时的他们介乎于游牧民族和农耕民族之间，有时还靠抢掠为生。六世纪的扩张使得他们的居地已经遍布欧洲中东部。近代随着俄罗斯疆域的扩张，斯拉夫人也向西伯利亚和中亚地区迁徙。

斯拉夫人可分为南斯拉夫人、西斯拉夫人及东斯拉夫人：

Slavs are the largest Indo-European ethno-linguistic group in Europe. They inhabit Central Europe, Eastern Europe, Southeast Europe, North Asia and Central Asia. Slavs speak Indo-European Slavic languages and share, to varying degrees, cultural traits and historical backgrounds. From the early 6th century they spread to inhabit most of Central and Eastern Europe and Southeast Europe. Presently over half of Europe's territory is inhabited by Slavic-speaking communities.