Luise Dorothea of Saxe-Meiningen (10 August 1710 – 22 October 1767)^[1] was a member of German royalty. She was born in Meiningen, the daughter of Ernst Ludwig I, Duke of Saxe-Meiningen and Dorothea Marie of Saxe-Gotha. She was Duchess of Saxe-Gotha-Altenburg as the wife of Frederick III, Duke of Saxe-Gotha-Altenburg.

On 17 September 1729 in Meiningen, Luise married Frederick III, Duke of Saxe-Gotha-Altenburg, her first cousin.^[2] They had nine children:

1. Frederick Louis, Hereditary Prince of Saxe-Gotha-Altenburg (b. Gotha, 20 January 1735 – d. Gotha, 9 June 1756).
2. Louis (b. Gotha, 25 October 1735 – d. Gotha, 26 October 1735).
3. stillborn son (Gotha, 25 October 1735), twin of Louis.
4. stillborn twin sons (1739).
5. Fredericka Louise (b. Gotha, 30 January 1741 – d. Gotha, 5 February 1776).
6. Ernest II, Duke of Saxe-Gotha-Altenburg (b. Gotha, 30 January 1745 – d. Gotha, 20 April 1804).
7. Sophie (b. Gotha, 9 March 1746 – d. Gotha, 30 March 1746).
8. August (b. Gotha, 14 August 1747 – d. Gotha, 28 September 1806).

Luise died in Gotha, aged 57.