| Ganzhu | |
| Subdivision Name1: | Jiangxi |
| Subdivision Name4: | Guangchang County |
| Population Total: | 24,236 |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Postal Code Type: | Postal code |
| Settlement Type: | Town |
| Population As Of: | 2019 |
| Demographics2 Info1: | 100% |
| Demographics1 Info2: | 2,700 |
| Subdivision Name2: | Fuzhou |
| Postal Code: | 344901 [1] |
| Subdivision Type4: | County |
| Demographics1 Title1: | Primary |
| Demographics1 Title2: | Other or unemployed |
| Area Total Km2: | 114 |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name: | China |
| Pushpin Map Caption: | Location in China |
| Area Code: | 0794 |
| Demographics2 Title1: | Han |
| Coordinates: | 26.9483°N 116.3714°W |
| Pushpin Map: | China# Asia# Earth |
| Native Name: | 甘竹镇 |
| Demographics Type1: | Economic sectors of employment |
| Demographics Type2: | Ethnicity |
| Demographics1 Info1: | 21,536 |
Ganzhu is an industry-based[2] town lying on the Fu River in northern Guangchang County, Fuzhou, Jiangxi, China. During the Song dynasty, it was called Lumaozhou (Chinese: 蘆毛洲). Ganzhu is adjacent in the east to Qianshan Township, in the south to Xujiang (a town), a recreation farm to its west and Nanfeng County to the north, which it borders. Ganzhuwei (Chinese: 甘竹圩), its town government, resides 13 kilometres away from the county seat. Also nicknamed the "first town of Xuyuan" (Chinese: 盱源首镇),[3] Ganzhu has at least 20 attractions, one of which is the world's largest lotus field. The town consists of 4,761 households[4] and governs one residential community and the following 12 villages:[5]