Washshukanni (also spelled Wassuganni, Vasukhani, or a combination of these variants) was the capital of the Hurrian kingdom of Mitanni (c. 1500 BC). The name is similar to the Sanskrit phrase for "a mine of wealth." Its precise location is unknown, but it is widely thought to have existed on one of the tributaries of the Khabur River. Some scholars believe it later became known as the ancient city of Sikan. It may be located under the so far unexcavated mound of Tell al-Fakhariyeh near Gozan in Syria, to the east of the Euphrates river.

The city is known to have been sacked by the Hittites under Suppiluliumas I in the first years of his reign (c.1344 - 1322 BC), although the Mitannian king Tusratta managed to escape the Hittite advance. The city was sacked again by the Assyrian king Adad-nirari I around 1290 BC, but very little else is known of its history.