- Lyttelton (continued)
- John William Leonard, 11th Viscount Cobham (the Right Hon.) (circa 1943 - 2006)
- Judith (1905 - 1993)
- Judith H. (circa 1925 - )
- Julian, (Lieut. the Hon.) (1923 - 1944)
- Katharine Sarah (before 1863 - 1943)
- Laura Mary Octavia (1862 - circa 1886)
- Lavinia, (the Hon.) (1821 - 1850)
- Lavinia, (the Hon.) (1849 - 1939)
- Lavinia Mary Yolanda, (the Hon.) (1921 - 2007)
- Lucy Blanche (1884 - 1977)
- Lucy Caroline, (the Hon.) (1841 - 1925)
- Margaret Lucy (1882 - circa 1970)
- Margaret Mary (circa 1910 - )
- Margaret Rose (circa 1926 - 2015)
- Martin William (1923 - 1923)
- Mary (1813 - 1857)
- Mary Catherine, (the Hon.) (1850 - circa 1875)
- Mary Frances (1895 - 1982)
- Mary Hermione (1894 - 1985)
- Mary Kathleen (1856 - 1907)
- Mary Pamela (circa 1929 - 2022)
- Mary Susan Caroline (circa 1853 - 1937)
- Maud Mary, (the Hon.) (1880 - 1953)
- Maureen N. (before 1899 - )
- Meriel Catherine, (the Hon.) (1911 - 1930)
- Meriel Sarah, (the Hon.) (1840 - 1925)
- Moira Godolphin (1891 - 1976)
- Mwyndeg Dorothea Mary Winchester (circa 1890 - circa 1951)
- Neville Gerald, G.C.B., G.C.V.O., P.C.(Ire) (General the Right Hon.) (1845 - 1931)
- Nicholas Makeig, (the Hon.) (circa 1951 - 2014)
- Norah Joan (between 1890 and 1891 - 1965)
- Olive Agneta (circa 1880 - 1941)
- Oliver, K.G., D.S.O., M.C., P.C., 1st Viscount Chandos (the Right Hon.) (1893 - 1972)
- Pamela Marie (circa 1889 - )
- Pamela Mary (before 1928 - )
- Phoebe A. (before 1927 - )
- Rachel Beatrice, (the Hon.) (1891 - 1965)
- Richard Glynne, (the Hon.) (1893 - 1977)
- Robert Henry, (the Hon.) (1854 - 1939)
- Rosemary, (the Hon.) (1922 - 2003)
- Sarah (1787 - 1870)
- Sarah, (the Hon.) (circa 1954 - 2015)
- Sarah Kathleen, (the Hon.) (1870 - 1942)
- Sibell Eleanor Maud (before 1896 - )
- Spencer, (the Hon.) (1818 - 1889)
- Spencer Clive (1939 - 1996)
- Stephen Clive (circa 1887 - circa 1959)
- Sybella Harriet (1836 - 1900)
- Sybil, (the Hon.) (1873 - 1934)
- Thomas Glynne (1940 - 2025)
- Viola Maud, (the Hon.) (1912 - 1987)
- Violet Yolande (circa 1885 - circa 1966)
- William Henry, 3rd Baron Lyttelton (the Right Hon. Sir) (1782 - 1837)
- William Henry, (the Hon. Rev.) (1820 - 1884)
- William Henry Cornewall (circa 1849 - 1881)
- Maberly-Smith
- MacArthur
- MacCabe
- MacCrossen
- MacCumber
- MacDonald
- MacDonnell
- MacDowell
- MacDuff
- Mace
- Macey
- Macfarlane
- MacFetters
- MacGillivary
- MacGlasham
- MacGregor
- MacGregor-Arnott
- Machin
- MacIntyre
- MacIsaac
- MacKay
- MacKenzie
- Mackeson
- Mackett
- Mackie
- Macklen
- MacKnight
- Mackrell
- MacLean
- MacLellan
- MacMahon
- MacMillan
- MacMinn
- MacPherson
- MacRea
- MacWhirter
- Macy
- Madden
- Maddern
- Joan L. (between 1934 and 1935 - 2013)
- Leo (between 1931 and 1932 - 2016)
- Maddick
- Maddison
- Maddock
- Madeley
- Mary (between 1848 and 1849 - )
- Maden
- Madgwick
- Esther (1853 - 1920)
- James (between 1824 and 1825 - )
- Ruth (between 1834 and 1835 - 1857)
- Madigan
- Madill
- Madsen
- Magee
- Magenstjerne
- Maggs
- Maguire
- Mahon
- Maidlow
- Maidman
- Joane (before 1543 - 1576)
- John (before 1543 - )
- Maidow
- Main
- Mainstone
- Maitland
- Major
- Makeig-Jones
- Makepeace
- Maker
- Makin
- Makison
- Malan
- Malbon
- Male
- Malins
- Mallace
- Mallard
- Maller
- Harriet (between 1834 and 1835 - 1859)