卡本縣 (蒙大拿州)

{{Infobox U.S. county
| state = Montana
| county = Carbon County
| county_zh = 卡本縣
| seal =
| seal size =
| ex image =
| ex image size =
| ex image cap =
| founded = 1895
| named for =
| seat = Red Lodge
| largest city = Red Lodge
| largest city wl =
| area_total_km2 = 5,341 km² (2,062 mi²)
| area_total_sq_mi =
| area_land_km2 = 5,304 km² (2,048 mi²)
| area_land_sq_mi =
| area_water_km2 = 37 km² (14 mi²)
| area_water_sq_mi =
| area percentage = 0.69%
| census yr = 2000
| census estimate yr =
| pop = 9,552
| population_density_km2 = 2
| population_density_sq_mi =
| time zone =
| web = www.co.carbon.mt.us
| coordinates = {{coord|{}|0|N|{}|0|W|type:adm2nd|display=title,inline}}
}}
卡本縣（）是美國蒙大拿州南部的一個縣，南鄰懷俄明州。面積5,341平方公里。根據美國2000年人口普查，共有人口9,552。縣治紅客棧市（Red Lodge）。

成立於1895年5月4日。縣名是英語碳的意思，指的是當地的煤礦。