Hendek

{{Infobox Turkey place

| type = metro district

| name = Hendek

| image_skyline =

| image_caption =

| image_map = Sakarya districts.png

| map_caption = Map showing Hendek District in Sakarya Province

| coordinates = {{coord|40|48|18|N|30|44|57|E|format=dms|display=inline,title}}

| province = Sakarya

| leader_party = BBP

| leader_name = Irfan Püsküllü

| leader_name1 =

| area_total_km2 = 646

| elevation_m = 197

| population_footnotes =

| population_total = 90153

| population_as_of = 2022

| postal_code = 54300

| area_code = 0264

| website = {{url|http://www.hendek.bel.tr/}}

| blank1_name = Climate

| blank1_info = Cfb

}}

Hendek is a municipality and district of Sakarya Province, Turkey.[https://www.e-icisleri.gov.tr/Anasayfa/MulkiIdariBolumleri.aspx Büyükşehir İlçe Belediyesi], Turkey Civil Administration Departments Inventory. Retrieved 19 September 2023. Its area is 646 km²,{{cite web|url=https://www.harita.gov.tr/uploads/files-folder/il_ilce_alanlari.xlsx|title=İl ve İlçe Yüz ölçümleri|publisher=General Directorate of Mapping|access-date=19 September 2023}} and its population is 90,153 (2022).{{Cite web |title=Address-based population registration system (ADNKS) results dated 31 December 2022, Favorite Reports|url=https://biruni.tuik.gov.tr/medas/?kn=95&locale=en |access-date=19 September 2023|publisher=TÜİK|language=en|format=XLS}} The municipality was founded in 1907. The mayor of the city is Irfan Püsküllü (BBP).