| Type: | ATP Challenger |
| Napa Valley Challenger | |
| Current: | 2014 Napa Valley Challenger |
| City: | Napa, California |
| Country: | United States |
| Venue: | Napa Valley Country Club |
| Category: | ATP Challenger Series |
| Surface: | Hard |
| Draw: | 32S/32Q/16D |
| Prize Money: | $50,000 |
| Website: | Website |
The Napa Valley Challenger is a tennis tournament held in Napa, California, United States, since 2013. The event is part of the ATP Challenger Tour and is played on outdoor hard courts.
| Year | Champion | Runner-up | Score | |
|---|---|---|---|---|
 Sam Querrey | 6–3, 6–1 | |||
| Donald Young | 4–6, 6–4, 6–2 |
| Year | Champions | Runners-up | Score | |
|---|---|---|---|---|
| 2014 |  Peter Polansky Adil Shamasdin | Bradley Klahn Tim Smyczek | 7–6(7–0), 6–1 | |
| 2013 | Bobby Reynolds  John-Patrick Smith | Steve Johnson Tim Smyczek | 6–4, 7–6(7–2) |