G102 or G.102 may refer to:
China National Highway 102 R-1820-G102, a model of the Wright R-1820 Cyclone aircraft engine , a German torpedo boat was sunk as a target by U.S. Army planes in 1921 Grob G102 Astir, a single-seat glassfibre Standard Class sailplane Martinsyde G.102, a British First World War fighter bomber aircraft