Prince Emanuel of Liechtenstein (Emanuel Joseph Johann; 2 February/3 February 1700, in Vienna – 15 January 1771, in Vienna) was the father and brother to two of Liechtenstein's monarchs.

Emanuel was the second son of Prince Philipp Erasmus of Liechtenstein (11 September 1664 – 13 January 1704) and Countess Christina Theresa von Löwenstein-Wertheim-Rochefort (12 October 1665 – 14 April 1730).

He was brother to Josef Wenzel, Prince of Liechtenstein.

He married Countess Maria Anna Antonia von Dietrichstein-Weichselstädt (Graz, 10 September 1706 - Vienna, 7 January 1777) on 14 January 1726 in Vienna.

Their eldest son became monarch of Liechtenstein when Emanuel's brother died without any surviving heirs.