| 1981 Trades | |||||
| 1 | To Erie: | Kent Hrbek | 1 | To Pittsburgh: | George Brett |
| 2 | To San Francisco: | Rusty Staub | 2 | To Columbus: | San Francisco's 3rd rd pick in '81 and 6th rd pick in '82 |
| 3 | To Great Lakes: | Miguel Dilone | 3 | To Tempe: | Great Lakes' 4th rd pick in '82 |
| 4 | To Tempe: | Mt Sinai's 6th rd pick in '82 | 4 | To Mt Sinai: | Tempe's 6th rd pick in '81 |
| 5 | To San Francisco: | Erie's 5th rd pick in '81 | 5 | To Tempe: | San Francisco's 5th rd pick in '82 |
| 6 | To Spokane: | San Francisco's 1st rd pick in '82 | 6 | To San Francisco: | Bill Madlock |
| 7 | To Tempe: | Buddy Bell | 7 | To Houston: | Chet Lemon |
| 8 | To Columbus: | Mario Mendoza & Seattle's 3rd rd pick in '82 | 8 | To Seattle: | Rick Burleson |
| 9 | To Mt Sinai: | John Martin | 9 | To Tempe: | Mt Sinai's 9th rd pick in '82 |
| 10 | To Columbus: | Greg Pryor, Ken Macha and Mt Sinai's 10th rd pick in '82 | 10 | To Mt Sinai: | Jerry Narron & Mario Mendoza |
| 11 | To Chicago: | Johnny Bench and Albuquerque's 4th rd pick in '82 | 11 | To Albuquerque: | Barry Bonnell and Chicago's 2nd rd pick in '82 |