Places beginning with RU in Illinois, United States
- Ruark
- Rubicon, Township of
- Ruby
- Rudement
- Rue Vallee (subdivision)
- Ruffled Feathers Golf Community
- Rugby
- Ruma
- Ruma Election Precinct
- Rumpler
- Rural Hill
- Rural, Township of
- Rural, Township of
- Rush, Township of
- Rushville
- Rushville, Township of
- Russell
- Russell, Township of
- Russellville
- Russellville
- Rust
- Rustic Acres
- Rutherford
- Rutland
- Rutland, Township of
- Rutland, Township of
- Rutledge, Township of
- Ruyle, Township of