Kosumce

{{Infobox settlement

| name = Kosumce

| settlement_type = Village

| total_type =  

| image_skyline =

| image_caption =

| image_flag =

| image_shield =

| image_map =

| subdivision_type = Country

| subdivision_name = {{POL}}

| subdivision_type1 = Voivodeship

| subdivision_name1 = Masovian

| subdivision_type2 = County

| subdivision_name2 = Otwock

| subdivision_type3 = Gmina

| subdivision_name3 = Karczew

| coordinates = {{coord|51|59|N|21|16|E|region:PL|display=title,inline}}

| pushpin_map = Poland

| pushpin_label_position = bottom

| elevation_m =

| population_total = 280

| website =

}}

Kosumce {{IPAc-pl|k|o|'|s|u|m|c|e}} is a village in the administrative district of Gmina Karczew, within Otwock County, Masovian Voivodeship, in east-central Poland.{{TERYT}} It lies approximately {{convert|12|km|mi|0|abbr=on}} south of Karczew, {{convert|15|km|mi|0|abbr=on}} south of Otwock, and {{convert|32|km|mi|0|abbr=on}} south-east of Warsaw. As of 2007, the village had a population of approximately 280.

From 1975 to 1998 Kosumce was in Warsaw Voivodeship. Voivodeship Road 799 runs through the village.

Neighbouring villages include Dziecinów, Ostrówek and Piotrowice.