There are 5 bands with the name Dysthymia. 1. Depressive Black/Ambient band from Iceland.
2. Death Metal band from Italy
3. Depressive Black Metal band from Germany (with members of Total Negation (Ger), Through the Pain (Ger) and Last Moments (Ger)).
4. Ambient/Power Electronics project from the US.
5. Depressive Black Metal band from Japan.

Read more about Dysthymia on Last.fm.