An object of the present invention is to provide a water-developable flexographic printing plate precursor which has excellent water developability and exhibits excellent printing durability in a case of being made into a flexographic printing plate, a flexographic printing plate, and a photosensitive resin composition. The water-developable flexographic printing plate precursor of the present invention includes a photosensitive layer, in which the photosensitive layer contains a monomer, a polymerization initiator, a base polymer, and water-dispersible particles, the water-dispersible particles have carbon-carbon double bonds, and an amount of the carbon-carbon double bonds on a surface of the water-dispersible particles is 21 or less.