| Official Name: | Tsiatsan Ծիածան |
| Pushpin Map: | Armenia |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Name: | Armenia |
| Subdivision Type1: | Marz (Province) |
| Subdivision Name1: | Armavir |
| Population As Of: | 2008 |
| Population Total: | 1141 |
| Timezone: | |
| Utc Offset: | +4 |
| Coordinates: | 40.1869°N 44.2667°W |
Tsiatsan (Armenian: Ծիածան - meaning "rainbow"; until 1978, Grampa) is a village in the Armavir Province of Armenia.