Hopefully you’ll never need it:

US Embassy in France
Map it!
2, avenue Gabriel
75382 Paris Cedex 08
Switchboard: +33 1 43 12 22 22
Fax: +33 1 42 66 97 83

Please write down your PP number and/or photocopy your passport number before leaving the US. Ok, enough travel safety stuff back to planning your trip.

http://france.usembassy.gov/