迪卡尔布县 (亚拉巴马州)

{{Infobox U.S. county
| state = Alabama
| county = DeKalb County
| county_zh = 迪卡爾布縣
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| founded = 1836年1月9日
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| seat = Fort Payne
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| area_total_km2 = 2,017 km²
| area_total_sq_mi =
| area_land_km2 = 2,015 km² (778 mi²)
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| area_water_km2 = 2 km² (1 mi²)
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| area percentage = 0.10%
| census yr = 2000
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| pop = 64,452
| population_density_km2 = 14/km² (36/mi²)
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| coordinates = {{coord|{}|0|N|{}|0|W|type:adm2nd|display=title,inline}}
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迪卡尔布县（）是位于美国亚拉巴马州东北部的一个县，县治佩恩堡。根据美国人口调查局2000年统计，共有人口64,452，其中白人占92.55%、非裔美国人占1.68%。