Xinyi is an atonal pinyin romanization of various Mandarin Chinese words. It may refer to:
Clothing Xinyi (clothing) (), a form of undershirt worn during the Han era
Places Mainland China Xinyi, Jiangsu (), a county-level city in Xuzhou, Jiangsu Xinyi railway station () Xinyi, Guangdong (), a county-level city in Maoming, Guangdong Xinyi Subdistrict, Harbin (), subdivision of Daowai District, Harbin, Heilongjiang Xinyi Subdistrict, Hegang (), subdivision of Dongshan District, Hegang, Heilongjiang Xinyi Subdistrict, Xiaoyi (), subdivision of Xiaoyi, Shanxi Xinyi, Shandong (), town in and subdivision of Yanzhou District, Jining, Shandong Xinyi, Lishi District (), town in and subdivision of Lishi District, Lüliang, Shanxi
Taiwan Xinyi, Nantou (), township of Nantou County Xinyi Anhe metro station (), Da'an District, Taipei Xinyi District, Taipei () Xinyi District, Keelung () Xinyi Expressway (), Wenshan-Xinyi, Taipei Xinyi line (), a metro branch line of Tamsui–Xinyi line Sinyi Elementary School metro station (), Sinsing District, Kaohsiung
People Chen Xinyi () (), a swimmer Joyce Cheng Yan-yee (Xinyi) () (), a singer and actress Ding Xinyi (), a rhythmic gymnast Fan Xinyi (), a trampoline gymnast Li Xinyi (singer) () (), a singer Li Xinyi (tennis) (), a tennis player Lara Veronin or Liang Xinyi () (), a singer Ma Xinyi () (1821–1870), an official and military general Pei Xinyi () (), a world champion weightlifter Qiu Xinyi () (), a singer Wang Xinyi (), a swimmer Xinyi Cheng () (), a painter Xia Xinyi (), an Olympic beach volleyball player Xinyi Xu, a statistician Xinyi Yuan () (), a mathematician Yuen Shun-yi (Yuan Xinyi) (), a martial artist, actor, and stuntperson
Companies Xinyi Glass (), a glass manufacturer Xinyi Solar (), an affiliate specializing in photovoltaics
Other Magnolia biondii (), used in traditional Chinese medicine Xinyi, a martial art that was a precursor to xingyiquan
See also 信義 (disambiguation)