| Official Name: | Compo, Connecticut |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Connecticut#USA |
| Pushpin Label: | Compo |
| Coordinates: | 41.1217°N -73.3519°W |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Name1: | Connecticut |
| Subdivision Type2: | County |
| Subdivision Name2: | Fairfield |
| Subdivision Type3: | Town |
| Subdivision Name3: | Westport |
| Area Footnotes: | [1] |
| Area Total Km2: | 4.38 |
| Area Land Km2: | 4.38 |
| Area Water Km2: | 0.0 |
| Population As Of: | 2020 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 30 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 06880 (Westport) |
| Area Code: | 203/475 |
| Blank Name: | FIPS code |
| Blank Info: | 09-16525 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2805088 |
Compo is a census-designated place (CDP) in the town of Westport, Fairfield County, Connecticut, United States. It is in the south-central part of the town, lying between the Saugatuck River and the neighborhood of Saugatuck to the west, and Compo Cove, Sherwood Millpond, and the neighborhood of Greens Farms to the east. The CDP extends south to Compo Beach on Long Island Sound and north to U.S. Route 1 (Post Road). Interstate 95 crosses the middle of the CDP from east to west, with access from either Saugatuck or Greens Farms.
Compo was first listed as a CDP prior to the 2020 census. The Compo–Owenoke Historic District is in the southern part of the CDP.