It is narrated from Ibn Sirin that the name of Abd al-Rahman bin Awf (may Allah be pleased with him) in the Days of Ignorance (Jahiliyyah) was Abd al-Ka'bah, so the Messenger of Allah (peace and blessings be upon him) named him Abd al-Rahman.
Hadith Referenceالمعجم الكبير للطبراني / العشرة / 252