| Robert | MACBEAN | Rosemary | McKenna | Councillor, Glasgow City Council. |
| James | MACINTYRE | Tony | Baldry | Researcher for Conservative Mainstream and The Tory Reform Group (pressure groups). |
| Matthew | MACKINLAY | Andrew | Mackinlay | None. |
| Margaret | MACLENNAN | Richard | Shepherd | None. |
| Emma | MACLENNAN | Terry | Rooney | Director, John Smith Memorial Trust; Director MacLennan Ward Research Ltd. |
| Nora | MACLEOD | Clive | Soley | None. |
| Mark | MACMILLAN | Irene | Adams | None. |
| Alexander | MACQUEEN | Bill | Olner | Business Affairs Executive, Granada International (employed in this role as a practising barrister). |
| Benedict | MACQUEEN | Neil | Turner | None. |
| Peter | MADDEN | Michael | Meacher | Advisor, Department of the Environment, Transport and the Regions. |
| Matthew | MAGUIRE | Mike | Hall | None. |
| Bassam | MAHFOUZ | Stephen | Pound | None. |
| James | MAHON | Tony | Cunningham | Head of Research for INDICT (the campaign to bring Iraqi war criminals to justice). |
| Alan | MAINE | Iain | Duncan Smith | Research Officer, Conservative Central Office. |
| Clare | MAKEPEACE | Dr Evan | Harris | Freelance history editor employed by Chadwyck Healey Ltd (a publishers). |
| Elayne | MALLON | Hilton | Dawson | None. |
| Elaine | MALTBY | Patsy | Calton | None. |
| Janice | MARNHAM | John | Austin | None. |
| Ann | MARSH | Andrew | Tyrie | None. |
| Andrew | MARSHALL | James | Plaskitt | None. |
| Laurence | MARSHALL | Paul | Farrelly | None. |
| Stephen | MARSHALL | Christine | Russell | None. |
| Joanne | MARSTON | Barry | Sheerman | None. |
| Garret | MARTIN | Tim | Loughton | None. |
| Oliver | MARTINS | Maria | Eagle | None. |
| Elsie | MARTLEW | Eric | Martlew | None. |
| Daksha | MASRANI | Mike | Gapes | None. |
| Monica | MASSON | Michael | Meacher | None. |
| Christian | MATHESON | Lindsay | Hoyle | None. |
| Joyce | MATHESON | Clare | Short | None. |
| Angela | MATHEW | John | Redwood | None. |
| Alen | MATHEWSON | Angela | Eagle | None. |
| David | MATHIESON | Jim | Cousins | Solicitor, Clifford Chance Solicitors. |
| Kazuko | MATSUMOTO | Lawrie | Quinn | None. |
| Adam | MATTHEWS | Barry | Gardiner | None. |
| Andrew | MAUGHAM | Alistair | Darling | None. |
| Hugh | MAWBY | Edward | Leigh | Benefit: Bursary/scholarship received from CARE (Christian Action Research and Education), a registered charity, as an intern on their graduate training scheme. |
| David | MAWDSLEY | David | Heathcoat-Amory | None. |
| Paul | MAYNARD | Dr Liam | Fox | Health Researcher, Conservative Central Office. |
| Ann | MCCARTNEY | Joe | Benton | None. |
| Jenifer | MCCLELLAND | Karen | Buck | None. |
| Fiona | MCCLYMONT | Malcolm | Moss | None. |
| Lindsay | MCCOY | Jim | Murphy | Labour Party Officer. |
| Kirsty | MCCULLAGH | Gerry | Sutcliffe | None. |
| William | MCDONALD | Brian | White | None. |
| Rachel | MCEWEN | Anne | McGuire | None. |
| Carol | MCGIRR | Janet | Dean | None. |
| Alasdair | MCGOWAN | Geoffrey | Hoon | Special Adviser, Ministry of Defence. |
| James | MCGOWAN | George | Galloway | Columnist for Flourish Publications Ltd. |
| Sarah | MCGUIRE | Anne | McGuire | Short-term contract: Received one-off payment from Sylvia Jackson MSP for maintaining her office accounts (registered May 2001). |
| Helen | MCIVOR | Michael | Fallon | None. |
| Joyce | MCKELVEY | Hugh | Bayley | None. |
| William | MCKELVEY | Desmond | Browne | Board Member, Scottish Homes (a government quango). |
| Hugh | MCKINNEY | Dr Ian | Gibson | Director, CERT (a cancer organisation). |
| Brigid | MCLAUGHLIN | Gwyn | Prosser | None. |
| Andrew | MCLELLAN | Mike | Gapes | None. |
| Susan | MCLEOD | Stephen | Pound | None. |
| Janet | MCLEOD-HATCH | Tony | Baldry | None. |
| Rebecca | MCLINDON | Charles | Kennedy | None. |
| Stuart | MCMILLAN | Pete | Wishart | None. |
| Cathleen | MCNAMARA | Dari | Taylor | None. |
| George | MCNAMARA | Ruth | Kelly | None. |
| Helen | MCNAMARA | Kevin | McNamara | None. |
| Christopher | MCSHANE | Brian | Wilson | None. |
| Gordon | MEAD | David | Laws | None. |
| Trevor | MEEGAN | Theresa | May | None. |
| Denis | MEEHAN | Tony | Colman | None. |
| Sylvia | MEEK | Jacqui | Lait | None. |
| Abdul | MEER | David | Hinchliffe | None. |
| Julie | MEHRABIAN | Patrick | McLouglin | None. |
| Lorraine | MELVIN | Chris | Pond | Councillor, London Borough of Tower Hamlets; Counsellor, MIND (a charity). |
| David | MENCER | Jim | Murphy | Director, Labour Friends of Israel. |
| Maria | MENEZES | Andrew | Stunell | None. |
| Randall | MERKELSON | Ian | Pearson | None. |
| Sarah | MERRILL | Fabian | Hamilton | Researcher, Graphical Paper and Media Union. |
| Christine | MERRY-PRICE | Ian | Taylor | Organising Secretary, Esher and Walton Conservative Association. |
| Alexandra | MESSERVY | Jonathan | Sayeed | None. |
| Piers | MEYLER | Ben | Chapman | None. |
| Rohema | MIAH | Harriet | Harman | None. |
| Tal | MICHAEL | Alun | Michael | Head of Corporate Policy, Barnet Borough Counci. |
| John | MIDGLEY | Laurence | Robertson | None. |
| Laura | MIDGLEY | Laurence | Robertson | None. |
| Susan | MIECZKOWSKA | Robert | Jackson | None. |
| Jason | MIKS | Piara | Khabra | None. |
| Kate | MILES | Peter | Hain | None. |
| Edith | MILLER | Linda | Perham | None. |
| Heather | MILLICAN | Patrick | Mercer | None. |
| Elizabeth | MILLS | Gordon | Brown | Occasional freelance administrative work for clients including the Smith Institute. |
| Richard | MILLS | Paul | Burstow | None. |
| Simon | MILNER | Lembit | Öpik | None. |
| Carole | MILWARD | Dr Ashok | Kumar | None. |
| Elisabeth | MITCHELL | Chris | Grayling | None. |
| Horace | MITCHELL | Sir George | Young | None. |
| Jonathan | MITCHELL | Austin | Mitchell | Freelance sound recordist. |
| Michelle | MITCHELL | Julie | Morgan | Head of Parliamentary Affairs, Charter 88. |
| James | MOHER | John | McWilliam | Official in Communication Workers Union. |
| Peter | MOLE | Denis | Murphy | General Secretary, National Association of Councillors. |
| Angela | MOLLOY | Harry | Cohen | None. |
| Nick | MOLYNEUX | Phil | Woolas | Press Officer for the Regions, AEEU (Amalgamated Engineering and Electrical Union). |
| Clare | MONTAGU | Tony | Colman | None. |
| Tim | MONTGOMERIE | Gary | Streeter | Director, Conservative Christian Fellowship. |
| Laura | MONTGOMERY | Robert | Syms | None. |
| Christiane | MOORE | Oliver | Heald | None. |
| Lindsay | MOORE | Julian | Brazier | None. |
| Ann-Marie | MORAN | Dai | Havard | None. |
| Peter | MORAN | Denis | Murphy | None. |
| David | MORGAN | Ann | Winterton | None. |
| Kathryn | MORGAN | Andrew | Tyrie | None. |
| Sally | MORGAN | Tony | Blair | None. |
| Stephen | MORGAN | Bridget | Prentice | None. |
| Lauren | MORLEY-NAGY | Keith | Hill | None. |
| Carl | MORRIS | Andrew | Mackinlay | Member of Thurrock Council. |
| Grahame | MORRIS | John | Cummings | Councillor, Easington District Council; Non-executive director, City Hospitals Sunderland NHS Trust; Parliamentary Liaison Officer, National Association of Councillors. Overseas Visit: 3-17 September 2000 to China (all travel and accommodation costs in China were met by the Chinese Association for International Understanding). |
| Linda | MORRIS | Tony | McWalter | None. |
| Pauline | MORRIS | Estelle | Morris | None. |
| Donald | MORRISON | David | Stewart | None. |
| Matthew | MORRISON | Anne | Campbell | None. |
| Isobel | MOSES | Helen | Brinton | None. |
| Jeanne | MOUSLEY | Desmond | Swayne | None. |
| Lisa | MULHERIN | Harold | Best | None. |
| Bernard | MUNDEN | Dr Andrew | Murrison | Councillor, Fareham Borough Council. |
| Maureen | MURPHY | Desmond | Browne | None. |
| Nicola | MURPHY | Alan | Milburn | Chief Political Research Officer, The Labour Party. |
| Peter | MURPHY | Albert | Owen | None. |
| Judith | MURRAY | Syd | Rapson | None. |
| Bridie | NATHANSON | Calum | Macdonald | None. |
| Catherine | NAYSMITH | Dr Doug | Naysmith | None. |
| Frances | NEWELL | Chris | Smith | None. |
| Adam | NEWTON | Oliver | Heald | Media Officer, Conservative Central Office. |
| Pauline | NGAN | Dr Tony | Wright | Research Officer, Democratic Audit, University of Essex. |
| Maria | NIALL | Desmond | Swayne | None. |
| Gloria | NICHOLL | Ann | Widdecombe | None. |
| Jemma | NICHOLS | Laurence | Robertson | None. |
| David | NICHOLSON | Denis | Murphy | Self employed engineer/associate with Newman Associates; elected member of Northumberland County Council; non-executive director of Northumberland Mental Health Trust. |
| David | NIXON | Kali | Mountford | None. |
| Julia | NOONE | Dari | Taylor | None. |
| June | NORRIS | Dan | Norris | None. |
| Sian | NORRIS-COPSON | Charles | Kennedy | None. |
| Mark | O'BRIEN | John | Randall | None. |
| Paul | O'DONNELL | Ian | Pearson | None. |
| Sean | O'DONOVAN | Andrew | Love | None. |
| George | O'NEILL | Frank | Cook | None. |
| John | O'REGAN | Gerry | Sutcliffe | Researcher, Graphics, Paper and Media Union. |
| Danuta | OKARMUS | Tony | Baldry | None. |
| Cally | OLDERSHAW | Gillian | Shephard | Researcher and Parliamentary Liaison Officer, The Geological Society. |
| George | OLIVER | Eleanor | Laing | Freelance Parliamentary Consultant for the House Magazine and Civil Service College. |
| Matthew | OLIVER | Anthony | Steen | None. |
| Kristoffer | OLSEN | Andrew | Miller | None. |
| Richard | OLSZEWSKI | Dr John | Reid | Special Adviser, Scotland Office. |
| Carlos | ORDONZ | David | Drew | None. |
| George | OSGERBY | John | Cryer | None. |
| Brian | OXLEY | Howard | Flight | Member of Brighton and Hove Council. |
| Verda | OZER | Frank | Cook | None. |
| Ana | PADILLA | Dr Ian | Gibson | Manager, Science in Society Programme, The Royal Society (scientific academy). |
| Nicola | PAGE | John | Redwood | None. |
| Roger | PAGE | Khalid | Mahmood | Elected Member, Sadwell Metropolitan Borough Council; Non-Executive Director, Birmingham City Hospital NHS Trust; sole director of Barringtons Hotel Ltd; paid consultancy (on educational matters), South Birmingham College. |
| Ian | PAISLEY | Rev Ian | Paisley | Member of Northern Ireland Assembly. |
| Ann | PALMER | David | Wilshire | None. |
| Guy | PARCKAR | Paul | Keetch | None. |
| Jane | PARK | Christopher | Leslie | None. |
| Garry | PARKER | Kerry | Pollard | Director, Garry Parker Ltd (self-employed lobbyist). Clients are: Forum of Private Business and UEAPME (European Association of Craft, Trades, and Small and Medium sized Enterprises - a non profit making organisation). |
| Ian | PARKER | Peter | Kilfoyle | None. |
| Jago | PARKER | Alice | Mahon | None. |
| William | PARKES | Douglas | Alexander | Researcher, the Labour Party. |
| Mark | PARSONS | Gary | Streeter | Research Officer, Conservative Central Office. |
| Andrew | PARTINGTON | Sir Brian | Mawhinney | None. |
| Rose | PATERSON | Owen | Paterson | Freelance consultant for Sothebys (fine art auctioneers), valuing paintings. |
| Oliver | PAULEY | Gordon | Marsden | None. |
| Margaret | PAYNE | Michael John | Foster | None. |
| Stephen | PAYNE | Sir Sydney | Chapman | Executive Director, Chipping Barnet Conservative Association. |
| Matthew | PEACOCK | Paul | Clark | None. |
| Kathryn | PEAK | Andrew | Smith | None. |
| Jonathan | PEARSE | Tony | Blair | None. |
| Catherine | PEARSON | Candy | Atherton | None. |
| Joshua | PECK | Caroline | Flint | None. |
| Phillipa | PEEL | Simon | Burns | None. |
| David | PEMBERTON | Alan | Duncan | None. |
| Michael | PENNING | Sir Teddy | Taylor | Director, Parliamentary and Media Ltd; Director, CDC Publishing Ltd; Adviser, Rayburn Ltd; some freelance journalism. |
| John | PENTLAND | Frank | Roy | None. |
| Christine | PERCIVAL | Peter | Lilley | None. |
| Trevor | PERRIN | Nigel | Beard | Councillor, London Borough of Bexley. |
| Georgina | PERRY | Sir Peter | Tapsell | None. |
| Ben | PESIC | Candy | Atherton | None. |
| Emma | PESKIN | Nigel | Griffiths | Head of Communications, epolitix.com. |
| Nicolette | PETERSEN | Jeremy | Corbyn | None. |
| Anna | PETROOK | Jonathan | Sayeed | None. |
| Benjamin | PETTER | Dr Evan | Harris | None. |
| James | PFEFFER | Menzies | Campbell | None. |
| Kate | PHILLIPS | Brian | Cotter | None. |
| Kate | PHILLIPS | Roger | Williams | None. |
| Susan | PHILLIPS | John | Prescott | None. |
| Wendy | PIATT | Dan | Norris | None. |
| Nicole | PICHE | Ann | Clwyd | None. |
| Janet | PICKERING | Chris | Mullin | Part-time Administration Manager, Co-operative Group (retail and financial services company). |
| Alisoun | PICKTHALL | Colin | Pickthall | None. |
| Louise | PIEROS | Geoffrey | Hoon | None. |
| Jane | PIKE | Peter | Pike | None. |
| Anthony | PILCH | Tom | Clarke | None. |
| Flore | PILZER | Dr Lynne | Jones | None. |
| John | PINDER | Michael John | Foster | None. |
| Lorraine | PITCHER | Michael | Howard | None. |
| Amanda | PLATT | Huw | Edwards | None. |
| Albert | POGGIO | Jimmy | Hood | Government of Gibraltar representative, Med Management Ltd. |
| Andrew | POOLE | Matthew | Green | None. |
| George | POPE | Alice | Mahon | None. |
| Roger | POPE | Ronnie | Campbell | None. |
| Jens | POPPEN | Ben | Bradshaw | None. |
| Marisa | PORGES | John | McFall | None. |
| Ze'ev | PORTNER | Louise | Ellman | Overseas Visit: 25 February-4 March 2001 to Israel to learn about the political situation there (accommodation, food and transport costs were met by the Trade Union Friends of Israel). |
| Rachel | POSNER | Jane | Kennedy | Events Co-ordinator, Labour Friends of Israel. |
| Silke | POTTEBOHM | Gisela | Stuart | Freelance seminar organiser for the Friedrich-Ebert Foundation, which provides a link between the SPD in Germany and the Labour Party in the UK. |
| Christopher | POUNDER | Harry | Cohen | None. |
| Craig | PRESCOTT | Jackie | Lawrence | None. |
| John | PRESTON | Edward | Garnier | Research Officer, Conservative Central Office. |
| David | PRICE | Derek | Wyatt | None. |
| Frances | PRICE | James | Cran | None. |
| Mary | PRICE | Peter | Ainsworth | None. |
| Catherine | PURVIS | Brian | Jenkins | None. |
| Steffi | PUSEY | Andrew | Dismore | None. |
| Brandon | PYERS | Norman | Baker | None. |
| Alex | PYKETT | Candy | Atherton | Provides secretariat to All-Party Parliamentary Water Group. |
