The 6th Foreign Engineer Regiment () was a unit of the Foreign Legion in the French Army, part of the rapid reaction force and component of the 6th Light Armoured Division, (6<sup>e</sup> DLB). The 6th Foreign Engineer Regiment became the 1st Foreign Engineer Regiment (1<sup>e</sup> REG) in 1999.
The 6th Foreign Engineer Regiment (6<sup>e</sup> REG) was created on July 1, 1984, at Laudun (Gard). The regiment was redesignated as the 1st Foreign Engineer Regiment () on June 30, 1999, with the creation of the 2nd Foreign Engineer Regiment 2<sup>e</sup> REG. At creation, the 6th Foreign Engineer Regiment (6<sup>e</sup> REG) comprised a command, 3 combat companies, reconnaissance and support company (CCAS). On the eve of the regiment change to the 1st Foreign Engineer Regiment, 1er REG; the 6th Foreign Engineer Regiment already included:
The 6th Foreign Engineer Regiment (6<sup>e</sup> REG) inherits the traditions and battle honors of the 6th Foreign Infantry Regiment.
The insignia symbolizes the 6th Foreign Infantry Regiment in the form of a hexagon, the three Roman columns of the temple of Jupiter at Baalbek to the left of the insignia and the symbols of the French Foreign Legion: red and green colors with a grenade with seven flames in its center.
The specialty of the regiment is symbolized by the "pot en tête" (metal military helmet) and armor used by sergeants at arms in the 13th century and later worn by pionniers sapeurs. The number of the regiment is indicated in the grenade underneath the armor while the motto of the regiment is inscribed to the left and right of the hexagon.
Chant de Marche : Sapeurs, mineurs et bâtisseurs