An ink composition including: (Component A) a polymerizable compound represented by following Formula (1); (Component B) a monofunctional polymerizable compound having a (meth)acrylamide structure; (Component C) a photopolymerization initiator; (Component D) a colorant; and (Component E) water, wherein in Formula (1), Z represents a polyol residue formed by removing n hydrogen atoms from hydroxyl groups of a trihydric to hexahydric polyol, R1 represents a hydrogen atom or a methyl group, and n represents an integer of from 3 to 6.