| Official Name: | Gajec |
| Settlement Type: | Village |
| Pushpin Map: | Croatia |
| Pushpin Label Position: | bottom |
| Coordinates: | 45.8827°N 16.1436°W |
| Subdivision Type: | Country |
| Subdivision Type1: | County |
| Subdivision Name1: | City of Zagreb |
| Subdivision Type2: | City District |
| Subdivision Name2: | Sesvete |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 2.4 |
| Population As Of: | 2021 |
| Population Total: | 327 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
Gajec is a village in Croatia, located about 20km north east of Zagreb. It is connected by the D29 highway.
According to the 2021 census, its population was 327. According to the 2011 census, it had 311 inhabitants.