林肯縣 (蒙大拿州)

{{Infobox U.S. county
| state = Montana
| county = Lincoln County
| county_zh = 林肯縣
| seal =
| seal size =
| ex image =
| ex image size =
| ex image cap =
| founded = 1909
| named for =
| seat = Libby
| largest city = Libby
| largest city wl =
| area_total_km2 =
| area_total_sq_mi = 3675
| area_land_km2 =
| area_land_sq_mi = 3613
| area_water_km2 =
| area_water_sq_mi = 62
| area percentage = 1.70%
| census yr = 2000
| census estimate yr =
| pop = 18837
| population_density_km2 = 2
| population_density_sq_mi =
| time zone =
| web = www.lincolncountymt.us
| coordinates = {{coord|{}|0|N|{}|0|W|type:adm2nd|display=title,inline}}
}}
林肯縣（）是美國蒙大拿州西北角的一個縣，北鄰加拿大，西鄰愛達荷州。面積9,518平方公里。根據美國2000年人口普查，共有人口18,837。縣治利比（Libby）。

成立於1909年3月9日。縣名可能紀念第十六任總統亞伯拉罕·林肯。