Zgniłka

{{Infobox settlement

| name = Zgniłka

| settlement_type = Village

| total_type =  

| image_flag =

| image_shield =

| image_map =

| subdivision_type = Country

| subdivision_name = {{POL}}

| subdivision_type1 = Voivodeship

| subdivision_name1 = Kuyavian-Pomeranian

| subdivision_type2 = County

| subdivision_name2 = Sępólno

| subdivision_type3 = Gmina

| subdivision_name3 = Więcbork

| coordinates = {{coord|53|20|N|17|24|E|region:PL|display=title,inline}}

| pushpin_map = Poland

| elevation_m =

| population_total =

| website =

}}

Zgniłka {{IPAc-pl|'|z|g|n|i|U|k|a}} is a village in the administrative district of Gmina Więcbork, within Sępólno County, Kuyavian-Pomeranian Voivodeship, in north-central Poland.{{TERYT}} It lies approximately {{convert|7|km|mi|0}} west of Więcbork, {{convert|16|km|mi|0|abbr=on}} south-west of Sępólno Krajeńskie, and {{convert|47|km|mi|0|abbr=on}} north-west of Bydgoszcz.