Bertrand de Blanchefort (or Blanquefort), (c. 1109 – 13 January 1169) was the sixth Grand Master of the Knights Templar, from 1156 until his death in 1169.

He trained in combat from a young age, but during his time as Grand Master, placed more emphasis on reform and negotiation.

His earliest action as Grand Master was with Baldwin III of Jerusalem, with whom he fought against Nur ad-Din Zangi.

Blanchefort petitioned the Pope to use the title, "Master by Grace of God", which fitted the Templar's position as rising stars in the church, a favor which Rome gladly granted.

He also established checks within the leaderships of the order, which stopped future Grand Masters deciding the direction of the Templars, without the backing of the knights.