Mroczno

{{Infobox settlement

| name = Mroczno

| settlement_type = Village

| total_type =  

| image_skyline = MROCZNO 02.jpg

| image_caption =

| image_flag =

| image_shield =

| image_map =

| subdivision_type = Country

| subdivision_name = {{POL}}

| subdivision_type1 = Voivodeship

| subdivision_name1 = Warmian-Masurian

| subdivision_type2 = County

| subdivision_name2 = Nowe Miasto

| subdivision_type3 = Gmina

| subdivision_name3 = Grodziczno

| coordinates = {{coord|53|21|11|N|19|42|10|E|region:PL|display=title,inline}}

| pushpin_map = Poland

| pushpin_label_position = bottom

| elevation_m =

| population_total =

| website =

}}

Mroczno {{IPAc-pl|'|m|r|o|cz|n|o}} is a village in the administrative district of Gmina Grodziczno, within Nowe Miasto County, Warmian-Masurian Voivodeship, in northern Poland.{{cite web |url=http://www.stat.gov.pl/broker/access/prefile/listPreFiles.jspa |title=Central Statistical Office (GUS) - TERYT (National Register of Territorial Land Apportionment Journal) |date=2008-06-01 |language=Polish}} It lies approximately {{convert|8|km|mi|0}} south-west of Grodziczno, {{convert|11|km|mi|0|abbr=on}} south-east of Nowe Miasto Lubawskie, and {{convert|72|km|mi|0|abbr=on}} south-west of the regional capital Olsztyn.