Thom's Irish Who's Who/Y

• Yapp, Richard Henry
• Yarr, Major-Gen. Sir Michael Thomas
• Yeats, Jack Butler
• Yeats, William Butler
• Yeilding, Col. William Richard
• Young, Colonel Charles Augustus
• Young, Filson
• Young, George Lawrence
• Young, John William
• Young, Sydney
• Young, Right Hon. William Robert
• Ypres, Earl of