Places beginning with FR in Illinois, United States
- Frahms Country Acres
- Frances Cabrini Homes (subdivision)
- Francis
- Frankfort
- Frankfort
- Frankfort Square
- Frankfort, Township of
- Frankfort, Township of
- Franklin
- Franklin Corners
- Franklin County
- Franklin Election Precinct
- Franklin Election Precinct
- Franklin Gardens (subdivision)
- Franklin Grove
- Franklin Park
- Franklin, Township of
- Franklinville
- Franks
- Fransonia (historical)
- Fravert
- Frederick
- Frederick, Township of
- Fredonia
- Fredonia (historical)
- Freeburg
- Freeburg, Township of
- Freedom Centre (historical)
- Freedom, Township of
- Freedom, Township of
- Freedville
- Freeman
- Freeman Spur
- Freenanton (historical)
- Freeport
- Freeport, Township of
- Fremont Center
- Fremont (historical)
- Fremont, Township of
- French Creek Election Precinct
- French Village
- Frielings
- Friends Creek, Township of
- Friendsville
- Friendsville Election Precinct
- Frisco
- Fritchens Subdivision (subdivision)
- Frogtown
- Frontenac
- Fruit
- Fruitland