Variants
Bf 110 V - Versuchs 
Bf 110A-0   Powered by 2 × Junkers Jumo 210Da inverted-Vee, (4 built)
Bf 110B-0   Uprated version of current engines, powered by 2 × Junkers Jumo 210Ga, Bulging, drooping nose replaced by a more aerodynamical nose that could carry 4 × 0.312 inch (7,92 mm) MG 17 guns, 1.000 rounds each, armament could be bolstered by 2 × 20 mm MG FF fixed forward-firing cannons in the lower fuselage. The cannons would be installed on a pallet under the pilot, and the 60-round drums would be changed by the navigator/radio operator (45 -Bs built)
Bf 110B-1   Identical to Bf 110B-0, but armed. additional 1 × 7.92 mm MG 17 trainable rearward-firing gun in the rear cockpit. 
Bf 110B-2   Reconnaissance version of the Bf 110B-1. The cannon installation was replaced by a camera installation 
Bf 110B-3   This version was a conversion for a trainer standard 
Bf 110C-0   Pre-production batch of Bf 110C series, deep radiators in the lower half of each engine nacelle were replaced by a combination of shallow oil coolers under the nacelle and shallow coolant radiators under the wings outboard of the nacelles, oil coolers had manually operated exit flaps, and coolant radiators had electrically controlled exit flaps. This change required modification of the wing structure, revised wing with more angular tips that reduced span and area slightly
powerplant was 2 × Daimler-Benz DB 601A. 
Bf 110C-1   Identical to Bf 110C-0, armed with 2 × 20 mm MG FF fixed forward-firing cannon, 120 rounds each, 4 × 0.312 inch (7,92 mm) MG 17 fixed forward-firing guns, 1.000 rounds each, and 1 × 0.312 inch (7,92 mm) MG 17 trainable rearward-firing gun, 750 rounds. 
Bf 110C-1/U1   Bf 110C-1 conversion to the glider-towing role. 
Bf 110C-2   Identical to the Bf 110C-1, except for it's radio equipment. FuG 10 in stead of a FuG IIIaU radio. 
Bf 110C-3   Based on the Bf 110C-2, and differed only in it's 20 mm armament. The MG FF cannons were replaced by other MG FF cannons that were smaller, and some fairings that were necessary with the old guns could be removed now. 
Bf 110C-4   Some armor protection for the crew provided. partly responsible for the increase in weight (490 lb, 220 kg). 
Bf 110C-4/B   JaBo, or JagdBomber (fighter-bomber) version of the Bf 110C-4, fitted with 2 ETC-250 racks, each capable of carrying a 551 lb (250 kg) SC-250 bomb. powered by 2 × Daimler-Benz DB 601N inverted-Vee, 
Bf 110C-5   Developed parallel with the Bf 110C-4/B, specialised photo-reconnaissance model in which the forward armament was reduced to 4 × 0.312 inch (7,92 mm) MG FF guns, Rb 50/30 camera installed, The basic variant was powered by 2 × Daimler-Benz DB 601A-1 enigines. 
Bf 110C-5/N   Identical to Bf 110C-5, but powered by 2 × Daimler-Benz DB 601N engines. 
Bf 110C-6   Two 20 mm cannons replaced by 1 × 30 mm MK 101 cannon. 
Bf 110C-7   Final Bf 110C version was a JaBo once more, two ETC-500 racks side-by-side under the fuselage to carry 2 × 1,102 lb (500 kg) SC-500 bombs. Because of the increased weight the main landing gear was strengthened.
Bf 110D-0   Pre-production batch of the Bf 110D series, fitted a ventral auxiliary fuel tank with a capacity of 264 Imp gal (317 US gal, 1.200 liters), tank itself could be jettisoned. 
Bf 110D-1   First production version of the Bf 110D series 
Bf 110D-1/U1   Night- FIghter version, fitted with the Spanner-Anlage, an infra-red sensor.
Bf 110D-1/R1   This version was identical to the Bf 110D-1. This version was fitted with the ventral auxiliary fuel tank. 
Bf 110D-1/R2   It had 2 × 198 Imp gal (238 US gal, 900 liter) drop tanks. 
Bf 110D-2   Successor of Bf 110D-1/R2, in the form of a long-range fighter-bomber. It could carry 2 × 1,102 lb (500 kg) SC-500 bombs, and 2 × 66 Imp gal (79 US gal, 300 liter) drop tanks. 
Bf 110D-3   Parallel development to Bf 110D-2, meant for long-range anti-shipping duties and had a dinghy in the rear fuselage. It could carry 2 × 1,102 lb (500 kg) SC-500 bombs, and 2 × 66 or 198 Imp gal (79 or 238 US gal, 300 or 900 liters) drop tanks. 
Bf 110E-0   Pre-production version of the Bf 110E, the first step towards fighter-bomber version, based on the Bf 110D, 
improved equipment, improved armor protection for the crew, some structural strengthening, and four ETC-50 racks under the outer wing to carry 4 × 110 lb (50 kg) SC-50 bombs, toether with the already possible 2 × 1,102 lb (500 kg) SC-500 bombs carried under the fuselage on two ETC-500 racks. Optionally it was possible to carry 2 × 66 Imp gal (79 US gal, 300 liters) drop tanks in stead of the 110 lb (50 kg) bombs under the outer wings. 
Bf 110E-1   Identical to the Bf 110E-0, and was powered by 2 × Daimler-Benz DB 601A-1 inverted-Vee engines initially. Later production aircraft received 2 × Daimler-Benz DB 601N inverted-Vee engines . 
Bf 110E-1/U1   Night-fighter version, fitted with the Spanner-Anlage infra-red target detector sensor. 
Bf 110E-1/U2   Night-fighter version, with provision for a control officer. 
Bf 110E-2   Based on Bf 110E-1, additionally had a dinghy in the rear fuselage like D-3, powered by 2 × Daimler-Benz DB 601N inverted-Vee 
Bf 110E-3   Based on the bf 110E-1, powered by 2 × Daimler-Benz DB 601N inverted-Vee engines, used for long-range reconnaissance duties, by replacing the MG FF cannon and ventral bomb racks with a camera installation. Armament was increased with 2 × 0.312 inch (7,92 mm) MG 17 fixed rearward-firing guns in the sides of the rear fuselage, and had provisions for 2 droptanks with a capacity of 66 or 198 Imp gal (79 or 238 US gal, 300 or 900 liters) under the outer wing panels. 
Bf 110F-0   Developed parallel with the Bf 110E version, identical to Bf 110E-1, but was powered by 2 × Daimler-benz DB 601F inverted-Vee, engine needed a larger oil cooler, which was the only external difference with the Bf 110E. 
Bf 110F-1   Identical to Bf 110F-0, except for armor protection, for the cockpit canopy 2.25 inch (57 mm) thick armor glass was used for the windscreen, with additional armor glass and armor plate in the cockpit and over the gunner's position.
Under the fuselage two ETC-500 racks were fitted which could carry 2 × 1,102 lb (500 kg) SC-500 bombs, or 2 × 551 lb (250 kg) SC-250 bombs, or 2 × 1,102 lb (500 kg) SD-500 fragmentation bombs, or 1 × 1,102 lb (500 kg) AB-500 container for 500 incendiary or fragmentation bombs. Additional weapons load could be carried under four underwing ETC-50 racks in the form of 4 × 110 lb (50 kg) SC-50 bombs, or 4 × 110 lb (50 kg) SD-50 fragmentation bombs, or 4 × 110 lb (50 kg) AB-24 containers each carrying 24 × 4.4 lb (2 kg) SD-2 fragmentation bomblets. 
Bf 110F-2   Heavy Fighter variant, which lacked all provisions for external loads. 
Bf 110F-3   Reconnaissance brother of the Bf 110F-1. It had the MG FF cannon and ventral bomb racks replaced with a camera installation. It had provisions for 2 droptanks with a capacity of 66 or 198 Imp gal (79 or 238 US gal, 300 or 900 liters) under the outer wing panels. 
Bf 110F-4   Same armament as Bf 110F-2 supplemented by 2 × 30 mm MK 108 fixed forward-firing cannons in a ventral tray. Another change to the Bf 110F-2 standard were the larger rudders and their trim tabs to improve handling and controlability during single-engine flight. 
Bf 110F-4/U1   Night fighter version fitted with the 2 × 30 mm MK 108 fixed oblique upward firing cannons in a Schräge Musik (Shrill music or Jazz) installation in the rear cockpit. 
Bf 110F-4a   Night-fighter was fitted with Airborne Intercept radar of the FuG 202 Lichtenstein BC type installation with a 4-pole antenna array on the nose. This subvariant also had its 20 mm MG FF drum-fed cannon replaced by 20 mm MG 151/20 belt-fed cannon with 650 rounds (300 for the port weapon and 350 rounds for the starboard weapon). Provision for two 66 Imp gal (79 US gal, 300 liter) drop tanks allowed range to be increased at expense of a further reduction in speed. 
Bf 110G-0   Most effective in the form of a night-fighter variant. powered by 2 × Daimler-Benz DB 605B-1 inverted-Vee, 
Bf 110G-2   Bf 110G-1 was never produced. It was planned that the Bf 110G-1 would operate as a heavy day fighter, with a fixed forward-firing armament of 2 × 20 mm MG 151/20 cannon, 650 rounds (300 to port and 350 to starboard) and 4 × 0.312 in (7,92 mm) MG 17 guns, 1.000 rounds each, in the lower and upper parts of the forward fuselage respectively. Bf 110G-1 was dropped in favor of the Bf 110G-2 heavy fighter with fighter-bomber capability made possible by provision for the carriage of several Rüstsätze (field conversion sets). Bf 110G-2 differ from the Bf 110G-0 in having revised vertical tail surfaces like on the Bf 110F-4 for improved single-engine handling. landing gear was strengthened, rearward defense was improved with the use of the 0.312 in (7,92 mm) MG 81z two-barrel gun, 800 rounds total. Other changes include two ETC 500 racks under the fuselage for 1,102 lb (500 kg) bombs and provision under the outer wing panels for the carriage of four 110 lb (50 kg) SC-50 bombs or 2 × 66 Imp gal (79.25 US gal, 300 liter) drop tanks. 
Bf 110G-2/R1   Bomber destroyer version, underfuselage bomb racks were replaced by a single 37 mm BK 3,7 gun adapted from the Flak 18 anti-aircraft gun and enclosed in a fairing of wood and fabric construction. This weapon was supplied with 72 rounds of ammunition, with a high muzzle velocity, and the explosive projectiles were usually sufficient to cripple a day bomber with a single hit. installation the MG 151/20 cannon had to be removed, however, and even so the mass and drag of the 37 mm gun installation degraded the Bf 110G-2/R1’s greatly, which made the type a very easy prey for the escort fighters that began to appear in growing numbers. 
Bf 110G-2/R2   Fitted with a GM-1 nitrous oxide power-boost system, positioned in rear cockpit, in place of the radio operator. Also all defensive armament and rear-cockpit protective armor was (necessarily so) deleted. 
Bf 110G-2/R3   The fixed forward-firing battery of 4 × 0.312 in (7,92 mm) MG 17 guns was replaced by 2 × 30 mm MK 108 cannon, 135 rounds each for an altogether transformed offensive capability. This included 2 × 20 mm MG 151/20 fixed forward-firing cannon in the lower part of the forward fuselage and alternative installations of 2 × 20 mm MG 151/20 cannon in a ventral tray or 2 × 1,102 lb (500 kg) SC-500 bombs on ETC 500 ventral racks. 
Bf 110G-2/R4   Combination of the Bf 110G-2/R3 with the Bf 110G-2/R1 (1 × 37 mm BK 3,7 and 2 × 30 mm BK 108 cannons) 
Bf 110G-2/R5   Identical to the Bf 110G-2/R4, but this version was fitted with a GM-1 nitrous oxide power-boost system. 
Bf 110G-3   Produced in parallel with the Bf 110G-2. Being a long-range reconnaissance version, it was fitted with 1 × Rb 50/30 or Rb 70/30 camera, a fixed forward-firing armament of 4 × 0.312 in (7,92 mm) MG 17 machine guns, a trainable rearward-firing armament of 1 × 0.312 in (7,92 mm) MG 81z two-barrel machine gun, a fixed rearward-firing armament of 1 × 20 mm MG 151/20 cannon under the rear fuselage with 350 rounds, and provision for 2 × 66 Imp gal (79.25 US gal, 300 liter) drop tanks under the outer wing panels.
Bf 110G-3/R3   The fixed forward-firing machine guns were replaced by 2 × 30 mm MK 108 cannons. 
Bf 110G-4   Dedicated night-fighter variant, which was produced parallel with the Bf 110G-2, fitted with additional armor protection for the pilot, and was designed for the carriage of air interception radar added in the form of Umrüst-Bausätze (factory conversion sets), and the variant’s standard armament was a fixed forward-firing battery of 2 × 20 mm MG 151/20 cannon with 650 rounds and 4 × 0.312 in (7,92 mm) MG 17 machine guns with 4.000 rounds together with a trainable rearward-firing armament of 1 × 0.312 in (7,92 mm) MG 81z two-barrel machine gun with 800 rounds. 
Bf 110G-4/U1   This version had a Schräge Musik (shrill music, i.e. jazz) central cockpit installation of 2 × 30 mm MK 108 cannon firing obliquely forward and upward, with the MG 81z deleted from the rear cockpit. 
Bf 110G-4/U5   The first type of radar installed in the Bf 110G-4 was the FuG 212 Lichtenstein C-1 equipment to produce the Bf 110G-4/U5 with a single-pole antenna array producing considerably less drag than the four-pole Matratze (mattress) array of the Bf 110F-4. 
Bf 110G-4/U6   An improved version of the Bf 110G-4/U5 carrying, in addition to the FuG 212 equipment, the FuG 221a Rosendaal-Halbe equipment designed to home in on the emissions of the ‘Monica’ tail-warning radar carried by some of the bombers of the Royal Air Force’s Bomber Command. 
Bf 110G-4/U7   This version dropped the FuG 221a equipment and exchanged the FuG 212’s single-pole antenna for a four-pole array. 
Bf 110G-4/U8    This version was fitted with a 118.8 Imp gal (142.65 US gal, 540 liter) auxiliary tank in place of the radio operator/gunner and provision under the outer wing panels for 2 × 66 or 198 Imp gal (70 or 238 US gal, 300 or 900 liter) drop tanks
Bf 110G-4a   In the fall of 1943 the four-pole antenna array became the standard for the Bf 110G-4 series. 
Bf 110G-4a/R1   Fitted with 1 × 37 mm BK 3,7 Flak cannon 
Bf 110G-4a/R2   Fitted with the GM-1 nitrous oxide power-boost system 
Bf 110G-4a/R3   Fitted with 2 × 30 mm BK 108 cannons in stead of 4 × 0.312 inch (7,92 mm) MG 17 guns 
Bf 110G-4b   Basically similar to the Bf 110G-4a apart from its radar installation, in which the FuG 212 Lichtenstein C-1 radar was retained with a single-pole antenna array and complemented by the FuG 220 Lichtenstein SN-2 with a four-pole Hirschgeweih (stag’s horn) antenna array to provide the ability to ‘see’ through the clouds of ‘Window’ metal foil strips ('Chaff' in American terminology) dropped by RAF Bombers to produce a vast number of echoes on the Germans’ radar screens. 
Bf 110G-4b/R3   Fitted with 2 × 30 mm BK 108 cannons in stead of 4 × 0.312 inch (7,92 mm) MG 17 guns 
Bf 110G-4b/R6   Fitted with 2 × 30 mm BK 108 cannon, as well as the GM 1 nitrous oxide power-boost system. 
Bf 110G-4b/R7   Fitted with 2 × 30 mm BK 108 cannon, as well as an auxiliary fuel tank of 119 Imp gal (143 US gal, 540 liter) in place of the radio operator/gunner. 
Bf 110G-4c   FuG 212 Lichtenstein C-1 equipment discarded and so reduce the number of drag-producing antennae sprouting from the nose. 
Bf 110G-4c/R3   Fitted with 2 × 30 mm BK 108 cannons in stead of 4 × 0.312 inch (7,92 mm) MG 17 guns 
Bf 110G-4c/R4   The 2 × 30-mm MK 108 cannon were replaced by 2 × 20 mm MG 151/20 cannon. Quite mysteriously, the aircraft were all delivered with two ETC 500 racks under the fuselage, but these were generally removed and, in some cases at least, replaced by a ventral tray carrying two 20 mm MG 151/20 cannon. 
Bf 110G-4c/R6   Fitted with 2 × 30 mm BK 108 cannon, as well as the GM 1 nitrous oxide power-boost system. 
Bf 110G-4c/R7   Fitted with 2 × 30 mm BK 108 cannon, as well as an auxiliary fuel tank of 119 Imp gal (143 US gal, 540 liter) in place of the radio operator/gunner. 
Bf 110G-4d   This version was the final Bf 110G-4 version 
Bf 110G-4d/R3   This version had a redesigned and less drag-producing antenna array for its FuG 220b radar. Some of the aircraft were also adapted in the field with the FuG 227/1 Flensburg system, with antennae mounted on the wing tips, to home onto the emissions of the British ‘Monica’ tail-warning radar 
Bf 110H-2   Produced in parallel with the Bf 110G up to the middle of 1944, this model had been planned from mid-1941 with a number of differences from the Bf 110G. Many of its features had then be adopted from the Bf 110G so that in the long run the Bf 110H differed significantly from the Bf 110G only in its powerplant of two DB 605E inverted-Vee engines, a measure of local strengthening in the rear fuselage, stiffened fins, stronger main landing gear units, and a retractable tailwheel 
Bf 110H-2/R1   Fitted with the GM-1 nitrous oxide power-boost system 
Bf 110H-2/R2   Fitted with the GM-1 nitrous oxide power-boost system 
Bf 110H-3   Reconnaissance version, fitted in the same manner as the Bf 10G-3, but with the 4 × 0.312 in (7,92 mm) MG 17 fixed forward-firing machine guns replaced by 2 ×30 mm MK 108 cannon. 
Bf 110H-4   Night-fighter equivalent of the Bf 110G-4 
Bf 110H-4/U7   This version dropped the FuG 221a equipment and exchanged the FuG 212’s single-pole antenna for a four-pole array. 
Bf 110H-4/U8   This version was fitted with a 119 Imp gal (143 US gal, 540 liter) auxiliary tank in place of the radio operator/gunner and provision under the outer wing panels for 2 × 66 or 198 Imp gal (70 or 238 US gal, 300 or 900 liter) drop tanks.