| Official Name: | Alto, Wisconsin |
| Pushpin Map: | Wisconsin#USA |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 945 |
| Coordinates: | 43.6767°N -88.795°W |
| Area Code: | 920 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1560805 |
Alto is an unincorporated community located in the town of Alto, Fond du Lac County, Wisconsin, United States.
For two days every year in early August, the Alto 4-H club and Farm Bureau sponsor a county fair-style event. The Alto Fair starts on a Wednesday and ends the following day, allegedly because a weekend fair would discourage children from attending church services. The fair includes events such as 4-H judging, a tractor pull, and country breakfasts each morning of the fair.[1]
According to the United States Census Bureau, the town has a total area of 36.3 square miles (94.0 km²), all of it land.[2]