No, Nevada does not require a state license to babysit. The Nevada Revised Statutes (NRS) impose no mandatory certification for casual or private childcare providers.
However, parents and agencies may set their own standards:
If you operate a formal daycare or childcare facility, strict licensing by the Nevada Division of Public and Behavioral Health applies. But for in-home babysitting, it's unregulated at the state level—trust and reputation rule.