Claude Lamoral, 3rd Prince of Ligne, Prince of Epinoy, Marquis of Roubaix and Count of Fauquemberg (8 October 1618 – 21 December 1679), was a nobleman from the Spanish Netherlands, a soldier and diplomat in the service of Philip IV of Spain and Charles II of Spain .

He married in 1642 his brother's widow Claire Marie of Nassau-Siegen, countess of Nassau (Brussels, October 1621 – Belœil, 2 September 1695).

He was a Prince of the Holy Roman Empire, Grandee of Spain and Knight in the Order of the Golden Fleece (1646).

In 1660, he was sent as representative of the Spanish King to the Royal court of Charles II of England as first foreign recognition of the newly restored English monarchy.

[citation needed] He became Viceroy of Sicily (1670–1674), where he fortified the coastal defences against Turkish pirates, who attacked the local population to abduct and sell them into slavery.