| Official Name: | Delazian |
| Native Name: | دلازيان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Semnan |
| Subdivision Type2: | County |
| Subdivision Name2: | Semnan |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Howmeh |
| Population As Of: | 2006 |
| Population Total: | 120 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 35.4978°N 53.4067°W |
Delazian (Persian: دلازيان, also Romanized as Delāzīān, Delāzeyān, Delāzīyān, Delāzīyān, and Deliāzān; also known as Dalījān) is a village in Howmeh Rural District, in the Central District of Semnan County, Semnan Province, Iran. At the 2006 census, its population was 120, in 44 families.The archaeological mound site of Delazian is located near the village. This site was surveyed and documented by Mohammad Mehryar and Ahmad Kabiri in the 1984s.[1] The site contains 2nd and 1st mill BC occupational remains. The Discovery of the Pointed barrel vault was the most important architectural remains in this important site.