Giam Swiegers
| Giam Swiegers | |
|---|---|
| Born | Guillaume Johannes Swiegers 27 July 1956 | 
| Nationality | South African | 
| Alma mater | University of Pretoria | 
| Occupation(s) | Chairman, NED and consultant | 
| Known for | former Global CEO of Aurecon and 12 year CEO of Deloitte Australia | 
Guillaume Johannes "Giam" Swiegers (born 27 July 1956) is a South African-born Australian business executive. Swiegers was the Global CEO of international engineering company Aurecon from 2015 to 2019, and was previously CEO of Deloitte Australia for twelve years.