Austrian Americans (German: Österreichamerikaner, pronounced [ˈøːstɐʁaɪçʔameʁiˌkaːnɐ]) are Americans of Austrian descent, chiefly German-speaking Catholics and Jews. According to the 2000 U.S. census, there were 735,128 Americans of full or partial Austrian descent, accounting for 0.3% of the population. The states with the largest Austrian American populations are New York (93,083), California (84,959), Pennsylvania (58,002) (most of them in the Lehigh Valley), Florida (54,214), New Jersey (45,154), and Ohio (27,017).

This may be an undercount since many German Americans, Czech Americans, Polish Americans, Slovak Americans, and Ukrainian Americans, and other Americans with Central European ancestry can trace their roots from the Habsburg territories of Austria, the Austrian Empire, or Cisleithania in the Austro-Hungarian Empire, regions which were major sources of immigrants to the United States before World War I, and whose inhabitants often assimilated into larger immigrant and ethnic communities throughout the United States.