| KXSB | |
| City: | Big Bear Lake, California |
| Area: | San Bernardino County, California |
| Branding: | Radio Lazer 101.7 FM y 100.9 FM |
| Frequency: | 101.7 MHz |
| Repeater: | 100.9 KAEH (Beaumont) |
| Format: | Regional Mexican |
| Facility Id: | 43999 |
| Erp: | 300 watts |
| Class: | A |
| Callsign Meaning: | eXtra San Bernardino |
| Owner: | Radio Lazer |
| Webcast: | Listen Live |
| Website: | KXSB Online |
| Licensing Authority: | FCC |
KXSB (101.7 FM) is a radio station broadcasting Spanish language programs. Licensed to Big Bear Lake, California, United States, it serves San Bernardino County, California. The station is currently owned by Radio Lazer.