Wilmington High School (Illinois)

{{Use mdy dates|date=January 2025}}

{{Infobox school

| name = Wilmington High School

| image =

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| motto =

| established =

| opened =

| type = Comprehensive public high school

| district = Wilmington School District 209-U

| grades = 9–12

| superintendent = Matt Swick

| principal = Scott Maupin

| enrollment = 465 (2016-17){{cite web|url=https://nces.ed.gov/ccd/schoolsearch/school_detail.asp?Search=1&DistrictID=1742630&ID=174263004284|title=Wilmington High School|publisher=National Center for Education Statistics|accessdate=February 17, 2019}}

| faculty =

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| area = South Suburbs

| campus_type =

| campus_size = {{convert|24|acre|ha}}

| athletics conference = Illinois Central Eight

| mascot = Wildcats

| newspaper =

| colors = {{Color box|purple|border=darkgray}}{{Color box|white|border=darkgray}} Purple and white

| location = 209 Wildcat Court
Wilmington, Illinois 60481

| country = US

| coordinates = {{coord|41|18|12|N|88|7|55|W|type:edu_region:US-IL|display=inline,title}}

| website = https://www.209u.net/o/whs

}}

Wilmington High School (or WHS) is a public four-year high school located in Wilmington, a southwest suburb of Chicago of the United States, in Will County. It is operated by Wilmington School District 209-U.