Shnaider or Shnayder are surnames, variants of Schneider as transliterated from the Russified spelling . It may refer to:
Alex Shnaider (born 1968), Canadian businessman Diana Shnaider (born 2004), Russian tennis player Dmitry Shnayder (born 1976), Kyrgyzstani athlete Shaya Shnayder, birth name of Sacha Moldovan, Russian-born American expressionist and post-impressionist painter