1) The third man
2) Double Indemnity
3) The Maltese Falcon
4) White Heat
5) Chinatown
6) Notorious
7) Touch of Evil
8) M
9) Shadow of A Doubt
10) Strangers on a Train
11) Sunset Blvd.
12) Detour

Listed a few extra, since defintions of what noir really is seems to differ.