Prince Heinrich Hartneid of Liechtenstein (Heinrich Hartneid Maria Franz de Paula Johann Alois Joseph Ignatius Benedictus Hilarion; 1 October 1920 – 29 November 1993) was a Liechtensteiner prince, diplomat and brother of Franz Joseph II.

Born into the reigning House of Liechtenstein, he was the eighth child and sixth son of Prince Alois of Liechtenstein and his wife, Archduchess Elisabeth Amalie of Austria.

He served as the chargé d'affaires in Switzerland from its reformation in 1944 until 1969, then as the Liechtenstein ambassador to Switzerland from 1969 to 1989. In addition, he was the non-resident ambassador in Austria from 1983 to 1991.^[1]

He married on 23 April 1968, in Vienna, Countess Amalie Podstatzky von Lichtenstein (b. 1935), daughter of Count Leopold Podstatzky von Lichtenstein (1903-1979) and his wife, Countess Marie Margarete Kinsky von Wchinitz und Tettau (1912-1994). They had three children:

• Princess Maria Elisabeth (b. 30 June 1969, in Bern), married civilly in Vaduz on 21 May 2004 and religiously in Blonay on 5 June 2004 Gilles Rouvinez (b. 25 May 1964, in Martigny), without issue
• Prince Hubertus Alois (b. 24 May 1971, in Bern), married to Claudia Rüegg
• Princess Marie Therese Eleonore (b. 29 January 1974, in Bern)^[2]

Prince Heinrich Hartneid died in Grabs, Switzerland on 29 November 1993. He is buried in the Princely Crypt in Vaduz Cathedral.^[3]