Collyns will visit Athens, Greece and Rome of Italy from Tuesday to Thursday, as part of the Treasury Department's on-going bilateral engagement, the agency said in a statement.
According to the statement, Collyns will meet with senior government officials and private sector representatives to discuss economic and policy developments in Greece and Italy.
An International Monetary Fund (IMF) mission on Tuesday will start discussions with Greek authorities on "how to bring Greece's economic program, which is supported by IMF financial assistance, back on track," the IMF said on Monday, stressing its support for Greece.
The IMF mission is expected to talk with the new Greek government on the international bailout program of 130 billion Euro, or 157 billion US dollars.
