Joseph, 4th Prince Kinsky of Wchinitz and Tettau (German: Joseph Ernst Leonhard Dominik Fürst Kinsky von Wchinitz und Tettau; 12 January 1751 – 11 August 1798) was the 4th Prince Kinsky of Wchinitz and Tettau.

Joseph was born at Vienna, Habsburg monarchy second son of Franz de Paula Ulrich, 3rd Prince Kinsky of Wchinitz and Tettau and Countess Maria Sidonie of Hohenzollern-Hechingen.

He succeeded his father in 1792, becoming the 4th Prince Kinsky of Wchinitz and Tettau.

He was a patron of Pavel Wranitzky (1756–1808) and other Moravian and Bohemian musicians in Vienna.

Joseph married on 23 April 1777 in Vienna to Countess Rosa of Harrach of Rohrau and Thannhausen (1758–1814), youngest daughter of Ferdinand Bonaventura II von Harrach and his wife, Countess Maria Rosa of Harrach of Rohrau and Thannhausen.