| En Name: | Saydy |
| Ru Name: | Сайды |
| Coordinates: | 62.6061°N 135.46°W |
| Map Label Position: | right |
| Federal Subject: | Sakha Republic |
| Adm Data As Of: | June 2009 |
| Adm District Jur: | Tomponsky District |
| Adm Selsoviet Jur: | Ynginsky Rural Okrug |
| Adm Selsoviet Type: | Rural okrug |
| Inhabloc Cat: | Rural locality |
| Inhabloc Type: | Selo |
| Mun Data As Of: | April 2012 |
| Mun District Jur: | Tomponsky Municipal District |
| Mun District Jur Ref: | [1] |
| Rural Settlement Jur: | Ynginsky Rural Settlement |
| Pop Latest: | 177 |
| Pop Latest Date: | 2002 |
| Postal Codes: | 678726 |
Saydy (Russian: Сайды; Yakut: Сайдыы, Saydıı) is a rural locality (a selo), and one of two settlements in Ynginsky Rural Okrug of Tomponsky District in the Sakha Republic, Russia, in addition to Novy, the administrative center of the Rural Okrug. It is located 11km (07miles) from Khandyga, the administrative center of the district and 3km (02miles) from Novyy. Its population as of the 2002 Census was 177.[2]