| Gruzdžiai | |
| Settlement Type: | Town |
| Pushpin Map: | Lithuania |
| Pushpin Map Caption: | Location in Lithuania |
| Subdivision Type: | Country |
| Subdivision Name: |  Lithuania |
| Subdivision Type1: | Ethnographic region |
| Subdivision Name1: | Samogitia |
| Subdivision Type2: | County |
| Subdivision Name2: | Šiauliai County |
| Subdivision Type3: | Municipality |
| Subdivision Type4: | Eldership |
| Population As Of: | 2011 |
| Population Total: | 1,467 |
| Coordinates: | 56.1°N 23.2528°W |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
Gruzdžiai is a town in Šiauliai County in northern-central Lithuania. In 2011 it had a population of 1,467.[1]
The town has a post office (ZIP code: 81024) and a gymnasium. Gruzdžiai was the birthplace of Lithuanian exile novelist Marius Katiliškis.