Sierzno

{{Unreferenced|date=December 2009}}

{{Infobox settlement

| name = Sierzno

| settlement_type = Village

| total_type =  

| image_flag =

| image_shield =

| image_map =

| subdivision_type = Country

| subdivision_name = {{POL}}

| subdivision_type1 = Voivodeship

| subdivision_name1 = Pomeranian

| subdivision_type2 = County

| subdivision_name2 = Bytów

| subdivision_type3 = Gmina

| subdivision_name3 = Bytów

| coordinates = {{coord|54|7|4|N|17|28|17|E|region:PL|display=title,inline}}

| pushpin_map = Poland

| pushpin_label_position = bottom

| elevation_m =

| population_total = 153

| website =

}}

Sierzno {{IPAc-pl|'|ś|e1|ż|n|o}} is a village in the administrative district of Gmina Bytów, within Bytów County, Pomeranian Voivodeship, in northern Poland. It lies approximately {{Convert|3|km|mi|0}} south-west of Bytów and {{Convert|81|km|mi|0|abbr=on}} west of the regional capital Gdańsk.