Chlothar III (also spelled Chlotar, Clothar, Clotaire, Chlotochar, or Hlothar; 652[1]–673) was King of the Franks, ruling in Neustria and Burgundy from 657 to his death.

He was the eldest son of King Clovis II, and his queen Balthild and succeeded his father under the regency of his mother.

[7] Also during his reign, the mayor of the palace Erchinoald died and a council of Franks elected Ebroin to replace him.

Ebroin's early administrative authority was significant: Bede tells the story of how, in 668, the newly appointed Theodore of Canterbury could only travel through the Frankish kingdoms from Rome with the mayor's permission.

He is confirmed as still being in the sixteenth year of his reign in a chronological note in a Victorian Easter table of 673.