奧羅拉縣 (南達科他州)

{{Infobox U.S. county
| state = South Dakota
| county = Aurora County
| county_zh = 奧羅拉縣
| seal =
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| founded =
| named for = 奥罗拉
| seat =
| largest city =
| largest city wl =
| area_total_km2 = 1,845
| area_total_sq_mi = 713
| area_land_km2 = 1,834
| area_land_sq_mi = 708
| area_water_km2 = 11
| area_water_sq_mi = 4
| area percentage = 0.61%
| census yr = 2000
| census estimate yr =
| pop = 3,058
| population_density_km2 = 2
| population_density_sq_mi = 4
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| coordinates = {{coord|{}|0|N|{}|0|W|type:adm2nd|display=title,inline}}
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奧羅拉县（）是位於美國南達科他州東南部的一個縣。面積1,845平方公里。根據美國2000年人口普查，共有人口3,058人。縣治普朗金頓 (Plankinton)。

成立於1879年2月22日。縣名以古希臘羅馬神話中的曙光女神命名。