Eystein

Eystein or Eysteinn is the name of:
 * Eystein Erlendsson (d. 1188), Norwegian bishop and saint
 * Eystein Halfdansson (fl. c. 730), king of Romerike and Vestfold in what is now Norway
 * Eystein Haraldson (died 1157), king of Norway
 * Eystein Ivarsson (d. 830) was Jarl of Oplande and Hedmark in Norway
 * Eystein Magnusson (c.1088–1123), king of Norway
 * Eystein Meyla (died 1177), also known as Eystein Eysteinson, Norwegian pretender
 * Eysteinn, legendary Swedish king