Illugi _ORSTEINSSON (ABT. 1309 - )
Ingimundur 'gamli' _ORSTEINSSON (ABT. 845 - )
Jón _ORSTEINSSON ( - )
Jón _ORSTEINSSON ( - )
Jón _ORSTEINSSON (ABT. 1570 - 10 Oct 1627)
Jón _ORSTEINSSON ( - 1742)
Jón _ORSTEINSSON (ABT. 1295 - )
Ketill _ORSTEINSSON (ABT. 1120 - 1173)
Klængur _ORSTEINSSON (ABT. 1100 - 1176)
Kolbeinn _ORSTEINSSON (1731 - 1783)
Kollsveinn _ORSTEINSSON (ABT. 974 - )
Kollur 'grái' _ORSTEINSSON (ABT. 940 - )
Magnús _ORSTEINSSON ( - 1656)
Olafur _ORSTEINSSON (ABT. 1340 - )
Olafur 'feilan' _ORSTEINSSON (870 - ABT. 918)
Páll _ORSTEINSSON (ABT. 1311 - )
Páll _ORSTEINSSON ( - BEF. 1735)
Páll _ORSTEINSSON (ABT. 1200 - )
Runólfur _ORSTEINSSON (ABT. 1559 - )