This is every Phineas and Ferb Theme i could find in any of these languages.

Credit to:

Disney XD Africa - Original
Eniisi Lisika - Albanian, Telugu
Anime Arabic Opening - Arabic
Mister Phineas 94 - Bulgarian, Filipino, Lithuanian (voice-over), Thai
BirdoFan2002 - Cantonese
ho jo - Croatian, Dutch, Icelandic, Italian, Mandarin (Standard), Mandarin (Taiwan), Persian, Portuguese (Brazil), Romanian, Serbian, Vietnamese
Canal 12 Chile - Czech, Finnish, Indonesian, Japanese, Norwegian, Polish, Tamil
ThePhineaswatcher - Danish
Kyuoku - French
IntroMainia - German
Fanis Nikolaos - Greek
GalaxyUnicorn - Hebrew
TheClubCartoon - Hindi
Braeby - Hungarian
brainiac - Malaysian
disneyportugal - Portuguese (Portugal)
TVRecordsKing PRO - Russian
PhineasAndFerbSlovak - Slovak
mauricioratedR - Spanish (Mexico)
CancionPhineasyFerb - Spanish (Spain)
Simon Stadin - Swedish
ThePimpona - Turkish
RiseNoSaigen - Ukrainian

Dubs i couldn't find: Azerbaijani, Kazakh and Slovene