Places beginning with DO in Illinois, United States
- Dodds, Township of
- Doddsville
- Dog Walk
- Dogwood
- Dolands Addition (subdivision)
- Dollville
- Dolson, Township of
- Dolton
- Doney
- Dongola
- Dongola District Number 1 Election Precinct
- Dongola District Number 2 Election Precinct
- Donkville
- Donnellson
- Donny Hill Meadows
- Donovan
- Dorans
- Dora, Township of
- Dorchester
- Dorchester, Township of
- Dorris Heights
- Dorrisville
- Dorr, Township of
- Dorsey
- Douglas
- Douglas
- Douglas County
- Douglas Park
- Douglas (subdivision)
- Douglas, Township of
- Douglas, Township of
- Douglas, Township of
- Dover
- Dover Pond (subdivision)
- Dover, Township of
- Dow
- Dowell
- Downers Grove
- Downers Grove, Township of
- Downs
- Downs, Township of
- Doyles
- Dozaville