The Aranca or Zlatica (Romanian: Aranca, Serbian: Златица / Zlatica, Hungarian: Aranka) is a 117 km long river in the Banat region of Romania and Serbia, left tributary of the river Tisa.

The Aranca originates in the northern part of the Banat, near the village Sânpetru German, southwest of the city of Arad, Romania.

[3] It flows to the west, next to the large villages of Sânpetru Mare, Saravale, the town of Sânnicolau Mare, Dudeștii Vechi and Vălcani, where it leaves Romania after the course of 76 km and enters Serbia as the Zlatica for the remaining 41 km.

In the lower part it has been channelized, so its navigable for the last 10 km and also very important for the irrigation of the arable land in its valley.

Near the village of Jazovo, waters of the Zlatica are used for the Ostojićevo fish pond, and a natural Celeruša bog is also located there.