Ostrowik, Otwock County

{{Other places|Ostrowik (disambiguation){{!}}Ostrowik}}

{{Infobox settlement

| name = Ostrowik

| settlement_type = Village

| total_type =  

| image_skyline = Ostrowik.jpg

| image_caption = Ostrowik.

| image_flag =

| image_shield =

| coordinates = {{coord|52|05|17|N|21|24|35|E|region:PL_type:city_source:kolossus-plwiki|display=title,inline}}

| pushpin_map = Poland

| subdivision_type = Country

| subdivision_name = {{POL}}

| subdivision_type1 = Voivodeship

| subdivision_name1 = Masovian

| subdivision_type2 = County

| subdivision_name2 = Otwock

| subdivision_type3 = Gmina

| subdivision_name3 = Celestynów

| elevation_m =

| population_total =

| website =

}}

Ostrowik {{IPAc-pl|o|s|'|t|r|o|w|i|k}} is a village in the administrative district of Gmina Celestynów, within Otwock County, Masovian Voivodeship, in east-central Poland.{{TERYT}}