Karnataka State Film Award for Best Actor is a state film award of the Indian state of Karnataka given during the annual Karnataka State Film Awards. The award honours Kannada language films.
The following is a partial list of award winners and the name of the films for which they won.
| Year | Winner | Film |
|---|---|---|
| 2009-10 | Vishnuvardhan | Aaptha Rakshaka' |
| 2008-09 | Yogesh | Ambari |
| 2007-08 | Puneeth Rajkumar | Milana |
| 2006-07 | Vijay [1] | Duniya |
| 2005-06 | Shivarajkumar [2] | Jogi |
| 2004-05 | Sri Murali [3] | Kanti |
| 2003-04 | Shivrajkumar [4] | Chigurida Kanasu |
| 2002-03 | Sudeep [5] | Nandi |
| 2001-02 | V. Ravichandran [5] | Ekangi |
| 2000-01 | H. G. Dattatreya | Munnudi |
| 1999-2000 | Shivarajkumar | Hrudaya Hrudaya |
| 1998-99 | 1.Vishnuvardhan 2.Ramesh Aravind |
Veerappanayaka Hoomale |
| 1997-98 | Vishnuvardhan | Laali |
| 1996-97 | Ramesh Aravind | America America |
| 1995-96 | Shivarajkumar | Om |
| 1994-95 | Ananth Nag | Gangavva Gangamayi |
| 1993-94 | Rajkumar | Akasmika |
| 1992-93 | Rajkumar | Jeevana Chaitra |
| 1991-92 | Devaraj | Veerappan |
| 1990-91 | Vishnuvardhan | Lion Jagapathi Rao |
| 1989-90 | Sridhar | Santha Shishunala Sharifa |
| 1988-89 | Rajkumar | Devatha Manushya |
| 1987-88 | Vishnuvardhan | Suprabatha |
| 1986-87 | Charuhasan | Tabarana Kathe |
| 1985-86 | ||
| 1984-85 | Vishnuvardhan | Bandhana |
| 1983-84 | Lokesh | Banker Margayya |
| 1982-83 | Rajkumar | Halujenu |
| 1981-82 | Rajkumar | Hosa Belaku |
| 1980-81 | Srinath | Shree Raghavendra Vaibhava |
| 1979-80 | Ananth Nag | Minchina Ota |
| 1978-79 | Lokesh | Parasangada Genddethimma |
| 1977-78 | Vishnuvardhan | Hombisilu |
| 1976-77 | Rajkumar | Babruvahana |
| 1975-76 | M V Vasudev Rao | Chomana Dudi |
| 1974-75 | Rajkumar | Bhaktha Kumbara |
| 1973-74 | Lokesh | Bhootayyana Maga Ayyu |
| 1972-73 | Vishnuvardhan | Naagarahaavu |
| 1971-72 | ||
| 1970-71 | Rajkumar | Kulagourava |
| 1969-70 | B.R. Pantulu | Shree Krishna Devaraya |
| 1968-69 | R. Nagendra Rao | Hannele Chiguridaga |
| 1967-68 | Rajkumar | Bangarada hoovu |