| Glavacioc | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Argeș, Dâmbovița, Teleorman, Giurgiu |
| Subdivision Type3: | Towns |
| Subdivision Name3: | Videle |
| Length: | 120km (80miles) |
| Source1: | Ștefan cel Mare, Argeș County, Romania |
| Source1 Coordinates: | 44.5261°N 25.1053°W |
| Source1 Elevation: | 181m (594feet) |
| Mouth: | Câlniștea |
| Mouth Location: | Ghimpați |
| Mouth Coordinates: | 44.1603°N 25.8019°W |
| Mouth Elevation: | 56m (184feet) |
| Basin Size: | 682km2 |
The Glavacioc is a left tributary of the river Câlniștea in Romania. It discharges into the Câlniștea near Cămineasca.[1] Its length is 120km (80miles) and its basin size is 682km2.[2] It flows through the villages Ștefan cel Mare, Glavacioc, Brătești, Cătunu, Poeni, Butești, Puranii de Sus, Purani, Baciu, Blejești, Videle, Rădulești, Crevenicu, Merenii de Sus, Merenii de Jos, Ștefeni, Letca Veche and Ghimpați.
The following rivers are tributaries to the river Glavacioc: