Do 335 A-2 : single-seat fighter-bomber aircraft with new weapon aiming systems, later proposed longer wing and updated DB603L engines.
Do 335 A-3 : single-seat reconnaissance aircraft built from A-1 aircraft, later proposed with longer wing.
Do 335 A-4 : single-seat reconnaissance aircraft with smaller cameras than the A-3
Do 335 A-5 : single-seat night fighter aircraft, later night and bad weather fighter with enlarged wing and DB603L engines.
Do 335 A-6 : two seat night fighter aircraft, with completely separate second cockpit located above and behind the original.
Do 335 A-7 : A-6 with longer wing.
Do 335 A-8 : A-4 fitted with longer wing.
Do 335 A-9 : A-4 fitted with longer wing, DB603L engines and pressurized cockpit.
Do 335 B-1 : Abandoned in development.
Do 335 B-2 : Single-seat destroyer aircraft. Fitted with 2 additional MK 103 in the wings and two 300 litre (80 US gal) auxiliary fuel tanks.
Do 335 B-3 : updated B-1 but with longer wing.
Do 335 B-4 : update of the B-1 with longer wing, DB603L engine.
Do 335 B-12: dual seat trainer version for the B-series aircraft.
Do 435 : A Do 335 with the redesigned, longer wing. Allied intelligence reports from early May 1945 make a report of a spotted Do 435 at the Dornier factory airfield at Lowenthal.
Do 535 : Actually the He 535, once the Dornier P254 design was handed over to Heinkel in October 1944.
Do 635 : long-range reconnaissance version. Also called Junkers Ju 635 or Do 335Z. Mock up only.
Do P 256: turbojet nightfighter version, with two podded HeS 011 turbojet engines,[2] based on Do 335 airframe.
