Grace Dieu is French for the Grace of God.

It can also refer to:

• Grace Dieu (ship), an English fifteenth century ship
• Grace Dieu Abbey, Augustinian abbey, County Dublin
• Grace Dieu Abbey, Monmouth in Monmouthshire, Wales
• Grace-Dieu, Leicestershire place
  • Grace Dieu Priory, Augustinian abbey at Grace Dieu, Leicestershire
  • Grace Dieu Manor School, a former preparatory school in Leicestershire
  • Grace Dieu Manor, nineteenth century Grade II* country house
• Grâce à Dieu, also known as By the Grace of God, a 2019 French film by François Ozon

• Henry Grace à Dieu, a Tudor-era warship