| WUIS | |
| City: | Springfield, Illinois |
| Branding: | NPR Illinois |
| Repeater: | 89.3 WIPA Pittsfield |
| Airdate: | January 3, 1975 (as WSSR) |
| Format: | Public radio |
| Subchannels: | HD1: WUIS analog HD2: Classical "NPR Illinois Classic" HD3: AAA "The X" |
| Erp: | 50,000 watts |
| Haat: | 152m (499feet) |
| Class: | B (NCE) |
| Facility Id: | 59012 |
| Coordinates: | 39.7834°N -89.4462°W |
| Callsign Meaning: | University of Illinois at Springfield |
| Former Callsigns: | WSSR (1975–1989) WSSU (1989–1995) |
| Affiliations: | National Public Radio |
| Owner: | University of Illinois Springfield |
| Licensee: | Board of Trustees of the University of Illinois |
| Webcast: | Listen Live Listen Live (Classic) Listen Live (The X) |
| Website: | nprillinois.org |
| Licensing Authority: | FCC |
WUIS (91.9 FM), branded on-air as NPR Illinois, is the National Public Radio member station in Springfield, Illinois, United States. It primarily features National Public Radio news and talk programming. The station is owned by and based at the University of Illinois Springfield. It operates a full-time satellite, WIPA in Pittsfield, which serves a small portion of the Quincy market.
WUIS originally hit the airwaves on January 3, 1975, as WSSR, operated by what was then Sangamon State University. It became WSSU in 1989, and adopted its current calls when Sangamon State merged with the University of Illinois system in 1995.
WIPA was brought online in 1993.
In 2015, the station rebranded as "NPR Illinois."