| Dr Laurence Picken FBA | Year of birth 1909 | Year of death 2007 | Year elected 1973 | Fellowship category UK |
| M Georges Picot FBA | Year of birth 1838 | Year of death 1909 | Year elected 1904 | Fellowship category Corresponding |
| Professor André Piganiol FBA | Year of birth 1883 | Year of death 1968 | Year elected 1967 | Fellowship category Corresponding |
| Professor Stuart Piggott CBE, FBA | Year of birth 1910 | Year of death 1996 | Year elected 1953 | Fellowship category UK |
| Professor Arthur Cecil Pigou FBA | Year of birth 1877 | Year of death 1959 | Year elected 1927 | Fellowship category UK |
| Professor Benjamin Pimlott FBA | Year of birth 1945 | Year of death 2004 | Year elected 1996 | Fellowship category UK |
| Professor Harm Pinkster FBA | Year of birth 1942 | Year of death 2019 | Year elected 2004 | Fellowship category Corresponding |
| Dr Boris Piotrovsky FBA | Year of birth 1908 | Year of death 1990 | Year elected 1967 | Fellowship category Corresponding |
| Professor Pippidi FBA | Year of birth 1900 | Year of death 1993 | Year elected 1973 | Fellowship category Corresponding |
| Professor Henri Pirenne FBA | Year of birth 1862 | Year of death 1935 | Year elected 1921 | Fellowship category Corresponding |
| Professor Nino Pirrotta FBA | Year of birth 1908 | Year of death 1998 | Year elected 1987 | Fellowship category Corresponding |
| Professor John Plamenatz FBA | Year of birth 1912 | Year of death 1975 | Year elected 1962 | Fellowship category UK |
| Dr Harold Plenderleith CBE, FBA | Year of birth 1898 | Year of death 1997 | Year elected 1973 | Fellowship category UK |
| Professor T. F. T. Plucknett FBA | Year of birth 1897 | Year of death 1965 | Year elected 1946 | Fellowship category UK |
| Sir John Plumb FBA | Year of birth 1911 | Year of death 2001 | Year elected 1968 | Fellowship category UK |
| Revd Dr Charles Plummer FBA | Year of birth 1851 | Year of death 1927 | Year elected 1924 | Fellowship category UK |