Cognomen Sigi (Sigi 
, זיגי 
, Зиги) , around the world, is quite a rare surname. The surname Sigi is characteristic of Liechtenstein, where it is quite a rare surname, Austria, where it is a rare surname, and Israel. Measured by absolute frequency, it is the most numerous in India, Indonesia, and Ethiopia. More frequently, Sigi is the forename as well as the last name.