| Gach Boland | |
| Native Name: | Persian: گچ بلند |
| Native Name Lang: | fa |
| Settlement Type: | Village |
| Pushpin Map: | Iran |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Country |
| Subdivision Name: | Iran |
| Subdivision Type1: | Province |
| Subdivision Name1: | Kohgiluyeh and Boyer-Ahmad |
| Subdivision Type2: | County |
| Subdivision Name2: | Bahmai |
| Subdivision Type3: | District |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Bahmai-ye Garmsiri-ye Jonubi |
| Unit Pref: | Metric |
| Population As Of: | 2016 |
| Population Total: | 766 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
Gach Boland (Persian: گچ بلند) is a village in Bahmai-ye Garmsiri-ye Jonubi Rural District of the Central District of Bahmai County, Kohgiluyeh and Boyer-Ahmad province, Iran.
At the time of the 2006 National Census, the village's population was 764 in 146 households.[2] The following census in 2011 counted 861 people in 192 households.[3] The 2016 census measured the population of the village as 766 people in 203 households. It was the most populous village in its rural district.[4]