Khun Si

{{Infobox settlement

|official_name = Khun Si Subdistrict

|native_name = {{lang|th|ตำบลขุนศรี}}

|settlement_type = Subdistrict

|motto =

|subdivision_type = Country

|subdivision_name = {{flag|Thailand}}

|subdivision_type2 = Province

|subdivision_name2 = Nonthaburi

|subdivision_type3 = District

|subdivision_name3 = Sai Noi

|established_title =

|established_date =

|area_total_km2 = 22

|area_water_km2 =

|area_footnotes = {{cite web

|url=https://www.khunsri.go.th/?name=data

|script-title=th:ข้อมูล อบต.

|author=Khun Si Subdistrict Administrative Organization

|date=

|website=Khun Si Subdistrict Administrative Organization

|access-date=11 December 2021

|lang=th}}

|population_as_of = 2020

|population_footnotes = {{cite web|url=https://stat.bora.dopa.go.th/stat/statnew/statyear/#/TableTemplate4/Area/statpop?yymm=63&ccDesc=จังหวัดนนทบุรี&topic=statpop&ccNo=12&rcodeNo=1205&rcodeDesc=อำเภอไทรน้อย|publisher=Department of Provincial Administration|title=Population statistics 2020|language=Thai|accessdate=11 December 2021}}

|population_note =

|population_total = 5054

|population_density_km2 = 229.73

|timezone = ICT

|utc_offset = +7

|latd= |latm= |lats=

|longd= |longm= |longs=

|elevation_footnotes =

|elevation_m =

|postal_code_type = Postal code

|postal_code = {{#property:P281}}

|area_code =

|blank_name = TIS 1099

|blank_info = {{#property:P1067}}

|website =

|footnotes =

|image_skyline =

|image_alt =

|image_caption =

}}

Khun Si ({{langx|th|ขุนศรี}}, {{IPA|th|kʰǔn sǐː|pron}}) is one of the seven subdistricts (tambon) of Sai Noi District, in Nonthaburi Province, Thailand. Neighbouring subdistricts are (from north clockwise) Sai Yai, Rat Niyom, Khlong Khwang, Sai Noi, Thawi Watthana, Naraphirom and Bang Phasi. In 2020 it had a total population of 5,054 people.