SMS G194 was a S-138-class large torpedo boat of the Imperial German Navy. She was built by the Germaniawerft shipyard at Kiel between 1910 and 1911, and was launched on 25 May 1911, entering service later that year. She served throughout the First World War, taking part in the Battle of Heligoland Bight on 28 August 1914. She was rammed and sunk by the British light cruiser Cleopatra on 26 March 1916.

The Imperial German Navy ordered 12 large torpedo boats (Große Torpedoboote) as part of the fiscal year 1910 shipbuilding programme, with one half-flotilla of six ships ordered from Germaniawerft and the other six ships from AG Vulcan. The two groups of torpedo boats were of basically similar layout but differed slightly in detailed design, with a gradual evolution of design and increase in displacement with each year's orders.

G194 was 74.0 metres (242 ft 9 in) long overall and 73.6 metres (241 ft 6 in) between perpendiculars, with a beam of 7.06 metres (23 ft 2 in) and a draught of 3.1 metres (10 ft 2 in). The ship displaced 660 tonnes (650 long tons) design and 810 tonnes (800 long tons) deep load.

Three coal-fired and one oil-fired water-tube boiler fed steam at a pressure of 18.5 standard atmospheres (272 psi) to two sets of direct-drive steam turbines. The ship's machinery was rated at 18,200 PS (18,000 shp; 13,400 kW) giving a design speed of 32 knots (37 mph; 59 km/h), with members of the class reaching a speed of 33.5 knots (38.6 mph; 62.0 km/h) during sea trials. 145 tons of coal and 76 tons of oil fuel were carried, giving an endurance of 2,590 nautical miles (2,980 mi; 4,800 km) at 12 knots (14 mph; 22 km/h), 1,150 nautical miles (1,320 mi; 2,130 km) at 17 knots (20 mph; 31 km/h) or 420 nautical miles (480 mi; 780 km) at 30 knots (35 mph; 56 km/h).

The ship was armed with two 8.8 cm L/45 guns, one on the forecastle and one aft. Four single 50 cm (19.7 in) torpedo tubes were fitted, with two on the ship's beam in the gap between the forecastle and the ship's bridge which were capable of firing straight ahead, one between the ship's two funnels, and one aft of the funnels. The ship had a crew of 84 officers and men.

G194 was laid down at Germaniawerft's Kiel shipyard as Yard number 153 and was launched on 12 January 1911 and completed on 2 August 1911.

On commissioning, G194 joined the 2nd Half Flotilla of the 1st Torpedo Flotilla, and remained part of the 2nd Half Flotilla in 1914.

On 28 August 1914, the British Harwich Force, supported by light cruisers and battlecruisers of the Grand Fleet, carried out a raid towards Heligoland with the intention of destroying patrolling German torpedo boats. The German defensive patrols around Heligoland consisted of one flotilla (the 1st Torpedo Flotilla) of 12 modern torpedo boats forming an outer patrol line about 25 nautical miles (29 mi; 46 km) North and West of Heligoland, with an inner line of older torpedo boats of the 3rd Minesweeping Division at about 12 nautical miles (14 mi; 22 km). Four German light cruisers and another flotilla of torpedo boats (the 5th Torpedo Boat Flotilla) was in the vicinity of Heligoland. G194, a member of the 2nd Half Flotilla of the 1st Torpedo Flotilla, formed part of the outer screen of torpedo boats.