| Illinois Elementary School Association | |
| Map: | Map of USA highlighting Illinois.png |
| Msize: | 250px |
| Abbreviation: | IESA |
| Purpose: | Athletic/Educational |
| Status: | Association |
| Headquarters: | 1015 Maple Hill Rd.. Bloomington, IL 61705 40.4673°N -88.9508°W |
| Region Served: | Illinois |
| Affiliations: | Affiliate member of National Federation of State High School Associations |
| Leader Title: | Executive Director |
| Leader Name: | Steve Endsley |
| Website: | http://www.iesa.org/ |
| Telephone: | 309-829-0114 |
Illinois Elementary School Association is a statewide athletics and activities association serving elementary and middle schools in the U.S. state of Illinois. At the end of the 1920s, a handful of principals and coaches at several central Illinois grade schools looked at ways to create a means of broadening and unifying their schools' activities programs. At that time, Illinois high schools were represented by the Illinois High School Association, but a comparable association for grade schools did not exist. The association was officially started in April 1928 as the Illinois State Graded School Athletic Association.[1]