| Official Name: | Delrey, Illinois |
| Settlement Type: | Unincorporated community |
| Mapsize: | 150px |
| Pushpin Map: | USA Illinois Iroquois County |
| Pushpin Label: | Delrey |
| Pushpin Map Caption: | Delrey's location in Iroquois County |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Iroquois |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 663 |
| Coordinates: | 40.6728°N -88.0172°W |
| Area Code: | 815 & 779 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 407111 |
Delrey is an unincorporated community in Iroquois County, in the U.S. state of Illinois.
A post office was established at Delrey in 1854, and remained in operation until the 1950s.[1] The community's name commemorates the Battle of Molino del Rey in the Mexican–American War.[2]