| Name | Country | Years | Starts | Wins | Championships |
|---|---|---|---|---|---|
| G Abecassis | English | 1951-1952 | 2 | 0 | 0 |
| K Acheson | Great Britain | 1983,1985 | 3 | 0 | 0 |
| P Adams | Belgium | 1994 | 2 | 0 | 0 |
| W Ader | United States | 1950 | 1 | 0 | 0 |
| K Adolff | Germany | 1953 | 1 | 0 | 0 |
| F Agabashian | United States | 1950-1957 | 8 | 0 | 0 |
| K Ahrens | Germany | 1968 | 1 | 0 | 0 |
| J Aitken | Great Britain | 2020 | 1 | 0 | 0 |
| C Albers | Netherlands | 2005-2007 | 46 | 0 | 0 |
| A Albon | Thailand | 2019-2020,2022-2023 | 60 | 0 | 0 |
| M Alboreto | Italy | 1981-1994 | 194 | 5 | 0 |
| J Alesi | France | 1989-2001 | 201 | 1 | 0 |
| J Alguersuari | Spain | 2009-2011 | 46 | 0 | 0 |
| P Alliot | France | 1984-1990,1993-1994 | 109 | 0 | 0 |
| C Allison | Great Britain | 1958-1961 | 16 | 0 | 0 |
| F Alonso | Spain | 2001,2003-2018,2021-2023 | 356 | 32 | 2 |
| G Amati | Italy | 1992 | 0 | 0 | 0 |
| G Amick | United States | 1958 | 1 | 0 | 0 |
| R Amick | United States | 1959-1960 | 2 | 0 | 0 |
| C Amon | New Zealand | 1963-1976 | 95 | 0 | 0 |
| B Anderson | Great Britain | 1963-1967 | 25 | 0 | 0 |
| C Andersson | Sweden | 1976 | 1 | 0 | 0 |
| M Andretti | United States | 1968-1972,1974-1982 | 128 | 12 | 1 |
| M Andretti | United States | 1993 | 13 | 0 | 0 |
| K Andrews | United States | 1955-1956 | 2 | 0 | 0 |
| M Apicella | Italy | 1993 | 1 | 0 | 0 |
| F Armi | United States | 1954 | 1 | 0 | 0 |
| C Arnold | United States | 1959 | 1 | 0 | 0 |
| R Arnoux | France | 1978-1989 | 149 | 7 | 0 |
| P Arundell | Great Britain | 1964,1966 | 11 | 0 | 0 |
| A Ascari | Italy | 1950-1955 | 32 | 13 | 2 |
| P Ashdown | Great Britain | 1959 | 1 | 0 | 0 |
| I Ashley | Great Britain | 1974,1976-1977 | 4 | 0 | 0 |
| G Ashmore | Great Britain | 1961 | 3 | 0 | 0 |
| B Aston | Great Britain | 1952 | 2 | 0 | 0 |
| R Attwood | Great Britain | 1965,1967-1969 | 16 | 0 | 0 |
| M Ayulo | United States | 1951-1954 | 4 | 0 | 0 |
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