| | | | | | |
| | Drivers highlighted like this have won a final during the current season | |
| |  indicates this driver has been interviewed  indicates that pictures are needed for this driver | |
| | B Ibbotson, Melton Mowbray | | 470 : 1959 | | |
| | John Ibbotson, Huddersfield | | 368 : 1971 to 1975 | | |
| | Bob Iles, Dunstable | | 294 : 1976 | | |
| | Oscar Iliohan, Netherlands | | H250 : 2015 to 2016 | | |
| | Paul Ingamells, Lincoln | | 196 : 2009 | | |
| | Mark Ingham, Clitheroe | | 236 : 1980 to 1981 | | |
| | Norman Ingham, Bradford | | 167 : 1954 | | |
| | Chris Insley, Cleckheaton | | 217 : 1989 | | |
| | Dave Iredale, Huddersfield | | 287 : 1970 to 1972 | | |
| | Harold Ireland | | 63A : 1954 | | |
| | Ian Ireland, Nazeing | | 314 : 1961 to 1966, 150 : 1967, 267 : 1969 to 1974 | | |
| | Bill Irick, USA | | USA25 : 1955 | | |
| | Stuart Irvine, Manchester | | 35 : 1987 to 1988 | | |
| | Dennis Irving, Castle Donington | | 363 : 1968 to 1973 | | |
| | Dennis Irving, Nottingham | | 485 : 1957 to 1964 | | |
| | John Irving, Eastwood | | 21 : 1982 to 1983, 521 : 1984, 65 : 1988 to 1989 | | |
| | Johnny Irving | | 422 : 1955 | | |
| | Dave Isaacs, Ilford | | B11 : 1954, 342 : 1956, 1 : 1957 to 1963 | | |
| | Paul Isherwood, Warrington | | 246 : 1987 to 1988 | | |
| | Mike Isles, USA | | USA711 : 1994 | | |
| | David Ison, Loughborough | | 103 : 1978 to 1982 | | |
| | Neal Ison, Worksop | | 200 : 2025 | | |
| | Jack Issitt, Spalding | | 102 : 2024 | | |
| | Michael Ives, Liversedge | | 236 : 1989 to 1995 | | |
| | Ollie Ives, Cleckheaton | | 237 : 2014 to 2017, 237 : 2023 | | |
| | F. Ivison, Weston Super Mare | | 335 : 1954 | | |
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