Families & clans — O

18 clans and families beginning with O. Back to the A–Z.

O

• O'Connell, William
• O'Connor / Ochiltree
• O'Neill, Martin

Oa

• Oakley

Og

• Ogg — clan
• Ogg of Tarragann
• Ogilvie — clan
• Ogilvie of Inverarity
• Ogilvie of Inverarity / Ochterlonie
• Ogilvie of Inverquharity or Ohio
• Ogilvie of Strathallan
• Ogilvy — clan
• Ogilvy of Airlie

Or

• Oren Peterson
• Orr Senior, Gerald William

Os

• Ostermeier

Ow

• Owen — clan
• Owen of Wales