Below you will find Odroid Google Apps One Click installers:
Android 5.0-5.1 – Lollipop:
GAPPS Installer – Lollipop
GAPPS Installer – Lollipop – Mirror 1
GAPPS Installer – Lollipop – Mirror 2
Android 4.4 – KitKat:
GAPPS Installer – KitKat
GAPPS Installer – KitKat – Mirror 1
GAPPS Installer – KitKat – Mirror 2
Android 4.1-4.3 – Jelly Bean:
GAPPS Installer – Jelly Bean
GAPPS Installer – Jelly Bean – Mirror 1
GAPPS Installer – Jelly Bean – Mirror 2