| Official Name: | Jayezan-e Kohneh |
| Native Name: | جايزان كهنه |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Khuzestan |
| Subdivision Type2: | County |
| Subdivision Name2: | Omidiyeh |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Jayezan |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Jayezan |
| Population As Of: | 2006 |
| Population Total: | 318 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 30.8983°N 49.8047°W |
Jayezan-e Kohneh (fa|جايزان كهنه, also Romanized as Jāyezān-e Kohneh and Jāyzānkohneh; also known as Jāizān and Jāyezān) is a village in Jayezan Rural District, Jayezan District, Omidiyeh County, Khuzestan Province, Iran. At the 2006 census, its population was 318, in 63 families.