Hs 293B was wire-guided to prevent jamming; it was never put into production, because jamming was never serious enough to prevent the radio-guided version from being effective.
Hs 293C (production version designated Hs 293A-2) had a detachable warhead.
Hs 293D was television-guided. Twenty were built and tested, but it was never used operationally as the television equipment was unreliable.
Hs 293E, an experimental model to test spoiler controls as a replacement to ailerons; never put into series production. This modification was put into the final version of the Hs 293A-2 but by then the Luftwaffe had no aircraft available for anti-shipping operations and it was never deployed.
Hs 293F, a tailless variant; never got further than the design phase.
Hs 293H, an experimental variant designed to be launched from one aircraft and controlled from another. Abandoned because allied air superiority had reached the point where it was felt that the second aircraft would be unable to remain in the vicinity of the ship for long enough.
Hs 293 V6, the sixth prototype airframe of the entire Hs 293 series, designed for launching from the Arado Ar 234 jet bomber at 720 km/h. The main change was reducing the wing span of the missile to allow it to be carried within the aircraft. The missile did not proceed past the design stage.