Sayn-Wittgenstein-Wittgenstein was a county of the Sauerland of Germany. Sayn-Wittgenstein-Wittgenstein was a partition of Sayn-Wittgenstein, comprising the southern portion of the Wittgenstein County. It came into existence after the death of count Louis the Elder in 1605. In 1657, it was partitioned into Sayn-Wittgenstein-Hohenstein and Sayn-Wittgenstein-Vallendar.