Eugène François Charles Joseph Lamoral de Ligne d'Amblise et d'Epinoy (28 January 1804 – 20 May 1880), 8th Prince of Ligne and of the Holy Roman Empire was a Belgian diplomat and liberal politician.

He was the son of Louis Eugene Marie Lamoral, Prince of Ligne, and Countess Louise van der Noot de Duras.

After his return to Belgium, he was named ambassador and sent to London for the coronation of Queen Victoria.

[2] His second wife died a few days after giving birth to their only child: His third, and final, marriage was on 28 October 1836 to Princess Jadwiga Julia Wanda Lubomirska (1815–1895), a daughter of Polish Prince Henryk Ludwik Lubomirski, who settled in Austria, and Princess Teresa Czartoryska (daughter of Prince Józef Klemens Czartorysk).

As his eldest son predeceased him in 1871, he was succeeded as Prince of Ligne by his grandson, Louis.