Tianyi may refer to:
Tianyi Pavilion, Ningbo, the oldest existing library in China Tianyi Square, Ningbo Tianyi Film Company, one of the biggest film production companies in pre-World War II China Tianyi UAV Tianyi, the proper name of the star 7 Draconis Tianyi bao, A Chinese anarchist publication in Japan Luo Tianyi, Chinese vocaloid character