Paul-Bernard de Fontaines (1566, Lorraine – 19 May 1643, Rocroi), also known as Comtefontaine, Conde Fontana or Fuentes, was commander of the Spanish infantry during the Eighty Years War.

When the twelve-year armistice ended in 1621, he built fortresses from Knokke to Lapscheure, later known as the Fontaine line.

In 1631, as commander of the Spanish troops, he broke through the siege of Bruges by Frederick Henry, Prince of Orange.

In 1636, together with his wife, Anna de Ragicourt, he founded a chapel and almshouse in the Zwarteleertouwersstraat in Bruges for twelve impoverished soldiers.

[1] At the Battle of Rocroi in 1643, he commanded his Tercios from a sedan chair before he fell and was later buried in the monastery church of the Order of Friars Minor.