Mr Pitt takes on the role from Nancy Nakikus, who has been Acting Chief Commercial Officer since May this year.
In a statement, PNG Air said he would be in charge of the commercial division for both the passenger and cargo, supporting business changes that the organization is going through.
The airline said: “Mr Pitt brings to the company a wealth of experience from leading international air carriers spanning over 30 years in management and leadership roles in Australia, Japan, the United Kingdom and the United Arab Emirates.”