How can I disable faces in iPhoto?
You cannot. Sorry. Face detection is automatic.
iPhoto is does not have all options, that the more advanced Aperture has, see: Iphoto 11 -How to turn off faces?
Send a feature request to Apple via http://www.apple.com/feedback/iphoto.html.
Future posts involving iPhoto on your Mac should be posted in the iPhoto communithy under iLife.
Retrieving data ...