A bolt rope (Variants: "bolt-rope" and "boltrope", French: ralingue, Spanish: relinga, Old Norse: *rár-línk, comprising rár genitive of rá "rope" and línk "edge of a sail "), is the rope that is sewn at the edges of the sail to reinforce them, or to fix the sail into a groove in the boom or in the mast.

Fore-and-aft sails often have bolt