| Antonci | |
| Other Name: | Antonzi |
| Settlement Type: | Village |
| Pushpin Map: | Croatia |
| Pushpin Label Position: | right |
| Coordinates: | 45.2397°N 13.6428°W |
| Subdivision Type: | Country |
| Subdivision Type1: | County |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Poreč |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 2.4 |
| Population As Of: | 2021 |
| Population Total: | 230 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 52440 Poreč |
| Area Code: | 052 |
Antonci (Italian: Antonzi) is a small village close to Poreč-Parenzo in the Croatian region of Istria.
According to the 2021 census, its population was 230. The population was 164 in 2011.