Uday or Udai Singh may refer to:
Udayasimha, Ruler of Jalore during c. 1204 – 1257 Uday Singh (born 1952), an Indian politician Uday Singh (religious leader), religious leader of Namdhari Sikhs Uday Singh (Fiji politician) (1938–2014), an Indo-Fijian politician Uday Singh (Sikh warrior) Uday Singh Taunque (1982–2003), an Indo-American Army soldier Uday Pratap Singh, an Indian politician Uday Pratap Singh (Madhya Pradesh politician), an Indian politician for Madhya Pradesh Raja Uday Pratap Singh (born 1933), an Indian titular Raja of the former princely state Bhadri of Oudh from 1970 to present Udal of Mahoba also Uday Singh, a heroic Indian warrior, contemporary of Prithviraj Chauhan Uday Singh, fictional police inspector played by Danny Denzongpa in the 1982 Indian film Khule-Aam
See also Udai Singh (disambiguation) Ramkisoen Dewdat Oedayrajsing Varma (1907–1968), Indo-Surinamese politician