Waitus, an uncommon and unique given name of unknown origin, is believed to have been introduced into the naming sphere through its usage as a surname. Spelled variously as Waitus, Watjus, Vaitus, or Vatus, it appears to have been used predominantly in historical records from the Baltic region, particularly Lithuania and Latvia. The name's meaning and etymology remain obscure, adding to its allure as an uncommon choice for a first name.
The name Waitus had an annual total of 5 births in 1935, making up all the recorded births for that year with this unique name.