Previously head of marketing for Australia, the P&G veteran was appointed to head of marketing for Asia in December 2008.
Carnegie was charged with leading the FMCG giant's centralised 'One Asia' marketing operations in Singapore.
As part of an internal reassignment, she is now heading back to Australia to head Australia and New Zealand's operations as general manager.
P&G India marketing head Sumeet Vohra will be taking over Carnegie's role as head of marketing for Asia.