Execute these commands in the terminal (excluding the lines with hashtags - they're comments):
Note that this may be different depending on what you named the application as, or whether you downloaded the preview version
rm -Rf /Applications/Android\ Studio.app
rm -Rf ~/Library/Preferences/AndroidStudio* rm -Rf ~/Library/Preferences/Google/AndroidStudio*
rm -Rf ~/Library/Preferences/com.google.android.*
rm -Rf ~/Library/Preferences/com.android.*
rm -Rf ~/Library/Application\ Support/AndroidStudio* rm -Rf ~/Library/Application\ Support/Google/AndroidStudio*
rm -Rf ~/Library/Logs/AndroidStudio* rm -Rf ~/Library/Logs/Google/AndroidStudio*
rm -Rf ~/Library/Caches/AndroidStudio*
rm -Rf ~/.AndroidStudio*
rm -Rf ~/AndroidStudioProjects
rm -Rf ~/.gradle
Note: This folder is used by other Android IDEs as well, so if you still using other IDE you may not want to delete this folder)
rm -Rf ~/.android
rm -Rf ~/Library/Android*
rm -Rf ~/.emulator_console_auth_token