IMAGING LENS

An imaging lens (10) includes, in order from an object side, a first lens group having negative power, a second lens group having negative power, a third lens group having positive power, a fourth lens group having negative power, and a fifth lens group having positive power. Letting a distance on an optical axis from a lens surface at an extreme end on the object side in the first lens group to a lens surface at an extreme end on an image side in the fifth lens group be D; and a distance on the optical axis from the lens surface at the extreme end on the image side in the fifth lens group to an imaging surface be Db, the imaging lens satisfies 1.10 ≤ D/Db ≤ 3.00.