A lamp for a vehicle includes: a lens being convex outwardly, the lens configured to transmit light; a reflector disposed inward from the lens, being convex upwardly, and configured to reflect light; a low-beam generator disposed below the reflector, the low-beam generator configured to emit a low beam; and a high-beam generator disposed below the low-beam generator, the high-beam generator configured to emit a high beam, wherein a portion of the low beam emitted from the low-beam generator is reflected by an area of the reflector close to the low-beam generator, and reaches a central area of the lens.