Q: How does one delete a ringtone exported from Garageband App?

Waaaay late to the party with this answer, but here's what worked for me:

In the My songs page in GarageBand on your phone, tap edit and select any song (doesn't matter which one...if you have no songs just create a blank one right quick), and then tap the share button and scroll to Ringtone. If any pop-up message shows just click continue. Then tap "your ringtones" and hit edit; then you should see the red minus, which you can tap to delete the ringtone.  This is the only way I've found to do it...it removes the tone from the "export ringtones" area you used to make it available as a ringtone in the first place.  Doing this does indeed remove the tone from the list in Settings-Sounds.  Hope this helps.

EDIT: This worked on an iPhone 6 plus on iOS 8.1 and GarageBand version 2.0.6

Thank you very much! This worked for me.

Thank you. Thank you. Thank you. Thank you.  I was so frustrated thinking I had to do this through iTunes, and it just wasn't working.  THANK YOU.

Thank you very much! Yes, this worked for me on iPhone 5 iOS 8.3, GB 2.0.6

hello, I had done as you suggested but ringtones have returned and now mysteriously disappeared even from Garageband .. I connected the iPhone to iTunes but the situation does not change: the ringtones are in settings and I can not find them for ultimate elimination.

Genius! Thanks!

TThanks guys this helped me out too I hated one of the first ringtones I ever made and couldn't get rid of it  

Thanks very much for posting this solution, it worked for me as well, I am stuck with deleting the backup copies that are in some shared file area. Can anyone help?

thanks very much

i have a problem i have delete the app so it does not show me anything only the recent stuff not old ones please any body please help me here i want to delete my old tones

Thanks man, works for me.. iPhone 6s, IOS 9.3.2