Topraisar is a commune in the Constanța County, Northern Dobruja, Romania.

Topraysar is of Tatar origin and is rounded out phonetically from Top[6] Rayis[6] Hisar[6] meaning The Fortress of the President of the Union.

Top Rayis meaning The Elected Leader of the Union or The President of the Union appears to designate Queen Tomyris and it seems to stand also at the origin of Dobruja and the ancient city of Tomis.

[8] Some people believe that the name of the commune derivates from Toprak Hisar meaning Earth/Clay Fortress.

[9][10] At the 2011 census, Topraisar had 4,758 Romanians (92.42%), 3 Roma (0.06%), 17 Turks (0.33%), 359 Tatars (6.97%), 11 others (0.21%).