Sankt Oswald ob Eibiswald was a municipality in Austria which merged in January 2015 into Eibiswald in the Deutschlandsberg District in the Austrian state of Styria.

Historical population

Year	Pop.	±%
1869	723	—
1880	755	+4.4%
1890	712	−5.7%
1900	731	+2.7%
1910	806	+10.3%
1923	779	−3.3%
1934	774	−0.6%
1939	820	+5.9%
1951	896	+9.3%
1961	814	−9.2%
1971	823	+1.1%
1981	747	−9.2%
1991	701	−6.2%
2001	641	−8.6%
2011	580	−9.5%
2014	562	−3.1%