the capital and principal port of Tunisia

Tunis (Arabic: تونس, Tūnis) is the capital of the Tunisian Republic and also the Tunis Governorate, with a population of 728,453 in 2004. Informal estimates state that the population of greater Tunis approaches two million.

TUNIS (Toronto University System) was a Unix-like operating system, developed at the University of Toronto in the early 1980s.