Shnaider or Shnayder are surnames, variants of Schneider as transliterated from the Russified spelling Шнайдер. It may refer to:
- Alex Shnaider, Canadian businessman
- Diana Shnaider, Russian tennis player
- Dmitry Shnayder, Kyrgyzstani athlete
- Shaya Shnayder, birth name of Sacha Moldovan, Russian-born American expressionist and post-impressionist painter