| Trevor Griffin | |
| Order: | 44th |
| Office: | Attorney-General of South Australia |
| Term Start: | 17 September 1979 |
| Term End: | 10 November 1982 |
| Premier: | David Tonkin |
| Predecessor: | Chris Sumner |
| Successor: | Chris Sumner |
| Premier2: | Dean Brown (1993–1996) John Olsen (1996–2001) |
| Term Start2: | 14 December 1993 |
| Term End2: | 4 December 2001 |
| Predecessor2: | Chris Sumner |
| Successor2: | Robert Lawson |
| Birth Date: | 1940 9, df=yes |
| Death Place: | Adelaide, South Australia |
| Birthname: | Kenneth Trevor Griffin |
| Nationality: | Australian |
| Party: | Liberal Party |
| Alma Mater: | University of Adelaide |
| Profession: | Lawyer |
Kenneth Trevor Griffin (14 September 1940 – 7 March 2015) was an Australian politician. He was a Liberal member of the South Australian Legislative Council from 1978 to 2002, when he retired from politics. He led the Liberal Party in the Council from 1979 to 1982 and was deputy leader from 1982 to 2001. He also served as 44th Attorney-General of South Australia from 1979 to 1982 and from 1993 to 2001.[1] After retiring from politics he became a wine maker.[2]
Griffin died in Adelaide on 7 March 2015, and was buried privately.[3]