To provide a fuel injection valve, a combustion device and a jet engine for stably burning even if miniaturized.

A side face near a tip of a fuel nozzle 11 includes a recessed groove 21 of a specific width in the circumferential direction. A fuel injection port 10 is formed on a bottom surface 21A of the recessed groove 21. Both side faces of the recessed groove 21 is formed while being widened in the direction separating radially outward from a central axis C to form a pair of guide faces 21B, 21C for allowing at least a part of the fuel injected from the fuel injection port 10 to flow along a surface. Further end sections of the recessed groove 21 are peripheral edge sections 21b, 21c of the guide faces 21B, 21C for separating the fuel flowing along the guide faces 21B, 21C from the guide faces 21B, 21C.