USS Illinois may refer to:
- USS Illinois (1864), was a Java-class screw frigate down in 1864, but was never completed and broken up for scrap in 1872
- , was the lead ship of the of battleships, launched in 1898, renamed Prairie State in 1941 and sold for scrap in 1956
- , would have been an , but construction was canceled before launch
- , is a , commissioned on October 29, 2016
See also
- A replica battleship Illinois was a full-scale mockup of an battleship, created as an exhibit for the 1893 World's Columbian Exposition