Lienen

{{Infobox German location

|name = Lienen

|type = Stadt

|image_photo =

|imagesize =

|image_caption =

|image_coa = DE_Lienen_COA.svg

|coordinates = {{coord|52|08|46|N|7|58|26|E|format=dms|display=inline,title}}

|image_plan = Lienen in ST.svg

|state = North Rhine-Westphalia

|region = Münster

|district = Steinfurt

|elevation = 82

|area = 73.27

|postal_code = 49536

|area_code = 05483
05484 (Kattenvenne)

|licence = ST (until 1975: TE)

|Gemeindeschlüssel = 05 5 66 044

|website = [http://www.lienen.de/ www.lienen.de]

|mayor = Arne Strietelmeier[https://www.wahlergebnisse.nrw/kommunalwahlen/2020/index_bm.shtml Wahlergebnisse in NRW Kommunalwahlen 2020], Land Nordrhein-Westfalen, accessed 30 June 2021.

|leader_term = 2020–25

|party =

}}

Lienen is a municipality in the district of Steinfurt, in North Rhine-Westphalia, Germany. It is situated approximately 15 km south-east of Osnabrück and 30 km north-east of Münster.

Lienen is a sister city with Saint Marys, Ohio in the United States. Lienen's neighboring municipalities, Ladbergen and Lengerich, are sister cities with Saint Marys' neighbors New Knoxville and Wapakoneta, respectively.