Ermentrude de Roucy (c. 951 – 5 May 1005) (Irmtrude) was a Countess and Duchess of Burgundy.

[1] She was a daughter of Renaud of Roucy and his wife, Alberade of Lorraine, daughter of Gilbert, Duke of Lorraine.

[2] By 971, Ermentrude married Aubry II of Mâcon and thus became a countess of Mâcon.

[3] They were the parents of: She also married Otto-William, Count of Burgundy.

[5] They had children: