Osbert
Osbert fitzHervey
Osbert Sitwell
Osbert Potter
Osbert of Clare
Osbert de Rozario
Osbert Mordaunt
Osbert Parsley
Osbert Edwin Williams Jr.
Osbert Frederick
Osbert Lancaster
Osbert Salvin
Osbert Peake, 1st Viscount Ingleby
William Fitz Osbert
Osbert de Bayeux
Osbert Molyneux, 6th Earl of Sefton
Osbert Chadwick
Alphonse Osbert
Osbert Burr Loomis
Osbert Mordaunt (cricketer, born 1842)
Osbert Mackie
Osbert de Longchamp
Osbert of Dunblane
Osbert Mordaunt (cricketer, born 1876)
Hugh Molyneux, 7th Earl of Sefton
Osbert Edrick Wilson
William Lancaster (anthropologist)
Osbeorn Bulax
Thomas Osbert Mordaunt
Richard Lumley, 13th Earl of Scarbrough
Osberht of Northumbria
O. G. S. Crawford