Eustace de Balliol (died 1274), Baron of Kirklington, Sheriff of Cumberland and Governor of Carlisle Castle was an English knight.

Eustace served as the Sheriff of Cumberland and the Governor of Carlisle Castle from October 1261 until 1265.

He returned and learned that his wife Helewise had died.

Eustace married secondly Agnes, daughter of William de Percy and Joan Briwere.

This biography of an English peer or noble is a stub.