Christian I, Duke of Saxe-Merseburg, (d. 1691)
Christian I of Saxe-Merseburg (Dresden, 27 October 1615 – Merseburg, 18 October 1691), was the first duke of Saxe-Merseburg and a member of the House of Wettin.

He was the sixth (third surviving) son of Johann Georg I, Elector of Saxony, and his second wife Magdalene Sibylle of Prussia.