| Official Name: | Isjek |
| Other Name: | Исјек |
| Settlement Type: | Village |
| Pushpin Map: | Bosnia and Herzegovina |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: | Bosnia and Herzegovina |
| Subdivision Type1: | Entity |
| Subdivision Name1: | Federation of Bosnia and Herzegovina |
| Subdivision Type2: | Canton |
| Subdivision Name2: | Canton 10 |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Bosansko Grahovo |
| Area Total Km2: | 21.45 |
| Population As Of: | 2013 |
| Population Total: | 13 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 44.2406°N 16.3569°W |
Isjek (Serbian: Исјек) is a village in the Municipality of Bosansko Grahovo, Canton 10 of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina.
According to the 2013 census, its population was 13.
| Number | Percentage | ||
|---|---|---|---|
| 12 | 92.3% | ||
| 1 | 7.7% | ||
| Total | 13 | 100% |