| William Merrick | William Merrill Eastcott | William Merritt Chase |
| William Mervyn | William Merz | William Messing |
| William Messner-Loebs | William Meyer | William Meyer (Bibliothekar) |
| William Meyer Stevenson | William Meyerowitz | William Meyers |
| William Meyers Colmer | William Meynard | William Mgimwa |
| William Michael Albert Broad | William Michael Citron | William Michael Cocke |
| William Michael Cosgrove | William Michael Crose | William Michael Fitzgerald |
| William Michael Griffin | William Michael Mulvey | William Michael Rossetti |
| William Michael Zabka | William Michaelis | William Michell |
| William Middleton | William Middleton (Bischof) | William Midwinter |
| William Miele | William Mikelbrencis | William Miles |
| William Miles Malleson | William Miley | William Millar |
| William Miller | William Miller (Baptist) | William Miller (Bischof) |
| William Miller (Fußballspieler) | William Miller (Graveur) | William Miller (Historiker) |
| William Miller (Politiker) | William Miller (Ruderer, 1905) | William Miller (Schauspieler, 1978) |
| William Miller (Schauspieler, 1996) | William Miller Jenkins | William Miller Ord |
| William Milligan Sloane | William Milliken | William Millin |
| William Mills | William Mills Irwin | William Millward |
| William Milne | William Milnes | William Milnor |
| William Milo Stone | William Milovanovic | William Milroy |
| William Minor | William Minot Guertler | William Minto |
| William Mitchell | William Mitchell (Mathematiker) | William Mitchell (Politiker) |
| William Mitchell Byers | William Mitchell Morgan | William Mitchell Ramsay |
| William Mitchinson Hicks | William Mockridge | William Modisane |
| William Moerner | William Moggridge | William Moise |
| William Mole | William Moller | William Mollerup |
| William Molloy, Baron Molloy | William Molyneux | William Monahan |
| William Monroe Trotter House | William Monsell | William Monsell, 1. Baron Emly |
| William Montagu | William Montagu, 1. Earl of Salisbury | William Montagu, 2. Baron Montagu |
| William Montagu, 2. Earl of Salisbury | William Montague | William Montague Browne |
| William Montgomery | William Montgomery (Kryptologe) | William Montgomery (Politiker, 1736) |
| William Montgomery (Politiker, 1789) | William Montgomery (Politiker, 1818) | William Montgomery Churchwell |
| William Montgomery Gardner | William Montgomery House | William Montgomery Thomson |
| William Montgomery Watt | William Moody | William Moon |
| William Moore | William Moore (Leichtathlet) | William Moore (Musiker) |
| William Moore (Politiker, 1810) | William Moore (Politiker, um 1735) | William Moore (Radsportler) |
| William Moore McCulloch | William Morais | William Mordecai Cooke |
| William Mordecai Cooke, Sr. | William More Gabb | William Morgan |
| William Morgan (Bischof) | William Morgan (Guerillakämpfer) | William Morgan Butler |
| William Morgan DeBeck | William Morgan Sheppard | William Morris |
| William Morris (Begriffsklärung) | William Morris Agency | William Morris Bioff |
| William Morris Davis | William Morris Davis (Politiker) | William Morris Hoge |
| William Morris Hughes | William Morris Hunt | William Morris Meredith, Jr. |
| William Morris Stewart | William Morris, 1. Viscount Nuffield | William Morrison |
| William Morrison (Schriftsteller) | William Morrison Oliver | William Morrison, 1. Viscount Dunrossil |
| William Morrissey | William Morrow & Company | William Morse Davidson |
| William Mortimer Clark | William Morton | William Morton Cox |
| William Morton Dey | William Morton Kahan | William Morton Wheeler |
| William Moseley | William Moseley (Schauspieler) | William Moses |
| William Moses Gould Helms | William Moses Kunstler | William Motherby |
| William Motter Inge | William Motzing | William Moulton Marston |
| William Moultrie | William Mountbatten-Windsor | William Mountbatten-Windsor, Duke of Cambridge |
| William Mountfort | William Mowat | William Mowse |
| William Moxley | William Moyers | William Mudford |
| William Muehlberger | William Mueller | William Muhlenberg Hiester |
| William Muhm | William Muir | William Mulholland |
| William Mulligan | William Mulliken | William Mulock |
| William Mulvey | William Mumford Gregory | William Mumler |
| William Mundy | William Mundy (Komponist) | William Munford Tuck |
| William Mungen | William Munger Boothby | William Munk |
| William Munro | William Murdoch | William Murdoch (Begriffsklärung) |
| William Murdoch Duncan | William Murdock | William Murphy |
| William Murphy (Bischof) | William Murphy (Boxer) | William Murphy (Lacrossespieler) |
| William Murphy (Politiker) | William Murray | William Murray (Politiker, 1803) |
| William Murray Black | William Murray, 1. Baron Mansfield | William Murray, 1. Earl of Mansfield |
| William Murray, 7. Earl of Mansfield | William Murray, 8. Earl of Mansfield | William Musgrave Calder |
| William Mustard | William Musyoki | William Mutchler |
| William Mutunga | William Mutwol | William Myers |
| William Myles Nobles | William Mynors | William Myron Keck |
| William N Watson | William N'Gounou | William N. Baltz |
| William N. Doak | William N. Eschmeyer | William N. Eskridge |
| William N. Gillmore | William N. Haskell | William N. Joy |
| William N. Lipscomb | William N. Oatis | William N. Panzer |
| William N. Reed | William N. Richardson | William N. Roach |
| William N. Selig | William N. Small | William N. Sweeney |
| William N. Vaile | William N. Watson | William N. Whiteley |
| William Nadylam | William Napier | William Napier Shaw |
| William Napier, 13. Lord Napier | William Napier, 9. Lord Napier | William Nassau Lees |
| William Nathan Harrell Smith | William Nathaniel Rogers | William Nathaniel Showalter |
| William N’Gounou | William Neal | William Neal (Komponist) |
| William Neave Parker | William Neff Patman | William Neil Eschmeyer |
| William Neile | William Neill | William Neizer Laing |
| William Nelson | William Nelson (General) | William Nelson (Politiker, 1784) |
| William Nelson Gillmore | William Nelson Joy | William Nelson Rector Beall |
| William Nelson Runyon | William Nelson, 1. Earl Nelson | William Neufeld |
| William Neville | William Neville (Politiker, 1843) | William Neville 1. Earl of Kent |
| William Neville, 1. Earl of Kent | William Newell Vaile | William Newman |
| William Newman (Schauspieler) | William Newnham | William Newton |
| William Newton (Architekt, 1735) | William Ngounou | William Nichol |
| William Nichol Eskridge | William Nicholas Hailmann | William Nicholas Selig |
| William Nicholas Stone Courtney | William Nicholas Watson | William Nichols |
| William Nichols (Politiker) | William Nicholson | William Nicholson (Chemiker) |
| William Nicholson (Maler) | William Nicholson (Schriftsteller) | William Nicholson, 1. Baron Nicholson |
| William Nicol | William Nicolas Baltz | William Nierenberg |
| William Nigh | William Nikolaus Reed | William Nindemann |
| William Nix | William Njobvu | William Njoku |
| William Njovu | William Noble | William Noble Andrews |
| William Nolan | William Nolan (Bischof) | William Nordberg |
| William Nordberg Medal | William Nordhaus | William Norris |
| William North | William North, 6. Baron North | William Northam |
