KIOI
| 
 | |
|---|---|
| Broadcast area | San Francisco Bay Area | 
| Frequency | 101.3 MHz (HD Radio) | 
| Branding | Star 101.3 | 
| Programming | |
| Language | English | 
| Format | Hot adult contemporary | 
| Subchannels | HD2: Pride Radio (LGBTQ-oriented Dance hits) | 
| Affiliations | Premiere Networks | 
| Ownership | |
| Owner | 
 | 
| History | |
| First air date | October 27, 1957 | 
| Former call signs | KPEN (1957–1968) | 
| Call sign meaning | KIOI (frequency is around "101" on an analog tuner) | 
| Technical information | |
| Facility ID | 34930 | 
| Class | B | 
| ERP | 125,000 watts | 
| HAAT | 354 meters (1,161 ft) | 
| Repeater(s) | See § FM Boosters | 
| Links | |
| Webcast | Listen live (via iHeartRadio) | 
| Website | 1013 | 
KIOI (101.3 FM, "Star 101.3") is an commercial hot adult contemporary-formatted American radio station licensed to San Francisco, California, United States, and owned by iHeartMedia. The radio studios and offices are in the SoMa district of San Francisco.
KIOI has an effective radiated power (ERP) of 125,000 watts. It is considered a "superpower station" due to this unusually high wattage that is grandfathered into KIOI's license. It is one of two stations in San Francisco broadcasting with more than 100,000 watts, the other being KQED-FM, with 110,000 watts. KIOI's transmitter is on Radio Road in Daly City, amid the radio towers for other San Francisco-area FM and TV stations. It also has booster stations on 101.3 MHz in Walnut Creek and Pleasanton.