Isuzu Motors Ltd. (Japanese: いすゞ自動車株式会社, Hepburn: Isuzu Jidōsha Kabushiki-Kaisha, TYO: 7202), trading as Isuzu (Japanese pronunciation: [isɨᵝzɨᵝ], /iˈsuːzuː/), is a Japanese commercial vehicle and diesel engine manufacturing company headquartered in Tokyo. Its principal activity is the production, marketing and sale of Isuzu commercial vehicles and diesel engines. 
The company also has a number of subsidiaries and joint ventures, including UD Trucks, Anadolu Isuzu (a Turkish joint venture with Anadolu Group), Sollers-Isuzu (a Russian joint venture with Sollers JSC), SML Isuzu (an Indian venture formerly known as Swaraj Mazda), Jiangxi Isuzu Motors (a Chinese joint venture with Jiangling Motors Company Group), Isuzu Astra Motor Indonesia, Isuzu Malaysia (Isuzu HICOM), Isuzu UK, Isuzu South Africa, Isuzu Philippines, Taiwan Isuzu Motors, Isuzu Vietnam, Isuzu Motors India and BYD Isuzu.