Consensus CHIKV E1 protein, consensus CHIKV E2 protein, consensus CHIKV capsid protein, or fragments and homologues thereof, and nucleic acid molecules that encode the same are disclosed. A consensus CHIKV Env protein which includes CHIKV E1 consensus protein, CHIKV E2 consensus protein, CHIKV E3 consensus protein, or fragments and homologues thereof and nucleic acid molecules that encode the same are also disclosed. Compositions and recombinant vaccines comprising CHIKV consensus proteins, and methods of using them are disclosed.