| Grigaičiai | |
| Settlement Type: | Village |
| Pushpin Map: | Lithuania |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location of Grigaičiai |
| Coordinates: | 54.6689°N 25.4189°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Lithuania |
| Subdivision Type2: | County |
| Subdivision Name2: | Vilnius County |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Vilnius District Municipality |
| Subdivision Type4: | Eldership |
| Subdivision Name4: | Šatrininkai Eldership |
| Established Title: | First mentioned |
| Population Total: | 1,325 |
| Population As Of: | 2011 |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
Grigaičiai is a village in Vilnius District Municipality, Lithuania, just south of Naujoji Vilnia. According to the 2011 census, it had population of 1,325.[1]