The Ialomicioara is a right tributary of the river Ialomița in Romania.

[1][2] It discharges into the Ialomița at Fieni.

[3] The upper reach of the river is also known as Vaca.

Its length is 27 km (17 mi) and its basin size is 95 km2 (37 sq mi).

This article related to a river in Dâmbovița County is a stub.