| Official Name: | Gtashen |
| Native Name: | Գտաշեն |
| Pushpin Map: | Armenia#Shirak |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Name: | Armenia |
| Subdivision Type1: | Province |
| Subdivision Name1: | Shirak |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Amasia |
| Population As Of: | 2011 |
| Population Total: | 271 |
| Utc Offset: | +4 |
| Coordinates: | 40.9189°N 43.7169°W |
| Elevation M: | 1860 |
Gtashen (Armenian: Գտաշեն) is a village in the Amasia Municipality of the Shirak Province of Armenia.
Armenians and Azeris once lived in the village, as well as Greeks, who even had a church, of which a half-ruined wall remains in the center of the village. In 1988-1989 Armenians from Akhalkalaki, Gyumri, Talin, Amasia and Nagorno-Karabakh settled in the village.[1]
According to 1912 publication of Kavkazskiy kalendar, 495 people, mainly Karapapakhs lived in village Magaradjik of Kars Okrug of Kars Oblast.
The community of Gtashen consists of the villages of Gtashen and Kamkhut. The Statistical Committee of Armenia reported that the community's population was 258 in 2010, down from 378 at the 2001 census.
The population of the village since 1886 is as follows:
| Year | Population | |
|---|---|---|
| 1886 | 309 | |
| 1908 | 480 | |
| 1922 | 312 | |
| 1959 | 557 | |
| 1970 | 983 | |
| 1979 | 925 | |
| 1989 | 139 | |
| 2001 | 378 | |
| 2004 | 356 |