The Big Sky Conference sponsored baseball from 1963-64 to 1973-74.
| Season |
Team Champion |
| 1963-64 |
Idaho |
| 1964-65 |
Gonzaga |
| 1965-66 |
Idaho |
| 1966-67 |
Idaho |
| 1967-68 |
Weber State |
| 1968-69 |
Idaho |
| 1969-70 |
Weber State |
| 1970-71 |
Gonzaga |
| 1971-72 |
Weber State |
| 1972-73 |
Gonzaga |
| 1973-74 |
Gonzaga |