Princess Elisabeth Sophie of Saxe-Altenburg

Elisabeth Sophie of Saxe-Altenburg (10 October 1619 – 20 December 1680) was a princess of Saxe-Altenburg and by marriage a duchess of Saxe-Gotha.

She was born in Halle as the only daughter of Johann Philipp, Duke of Saxe-Altenburg and his wife, Elisabeth of Brunswick-Wolfenbüttel.