Umar (or Omar) of Borno (or Bornu) may refer to several different rulers of the Kanem–Bornu Empire and later traditional states in Nigeria:
Umar I Idrismi, mai of the Kanem–Bornu Empire in the 14th century Umar II of Bornu, mai of the Kanem–Bornu Empire in the 15th century Umar III al-Maqdisi, mai of the Kanem–Bornu Empire in the 17th century Umar Kura, shehu of the Kanem–Bornu Empire 1837–1853 and 1854–1881 Sanda Kura (real name Umar Sanda), shehu of the Kanem–Bornu Empire 1900 and then shehu of the Borno Emirate 1922–1937 Sanda Kyarimi (real name Umar), shehu of the Borno Emirate 1937–1967 Umar, shehu of the Borno Emirate 1968–1974