Answer: Le Van Ra
"I guess you're not home." -Marie to Jason
After getting shot twice and waking up with amnesia, CIA assassin Jason Bourne travels to a bank in Zürich where, according to a laser chip embedded in his hip, has an account. Upon arrival, he finds his safety deposit box full of thousands of dollars in different European currency, a gun, and several fake passports. After a brief visit to the U.S. Embassy, he meets Marie Kreutz, and pays her to drive him to his house in Paris.
This name is visible when Jason and Marie are standing outside his apartment building in Paris, pressing the call button. But then, finding out that John Michael Kane is dead and then almost getting killed by an assassin... not really home sweet home, huh?