Sinyavsky () is a Slavic masculine surname, its feminine counterpart is Sinyavskaya. It may refer to Andrei Sinyavsky (1925–1997), Russian writer, dissident and political prisoner Sinyavsky–Daniel trial Mikołaj Hieronim Sieniawski (1645–1683), Polish nobleman Tamara Sinyavskaya (born 1943), Russian mezzo-soprano Vladimir Synyavsky (1932–2012), Ukrainian wrestler
See also 4981 Sinyavskaya, a minor planet