| - | Felix Antigua | | AA | | | | | | - | | 1988 | UDFA | | PIT |
|
| - | Scott Arvesen | P | AAA | 6-6 | 210 | Right | Right | 7/15/1968 | 21 | Palos Heights,Illinois | 1989 | 17 | 442 | PIT |
| - | Rich Aude | 1B | MLB | 6-5 | 180 | Right | Right | 7/13/1971 | 18 | Van Nuys,California | 1989 | 2 | 48 | PIT |
| - | Rob Bailey | OF | AA | 6-0 | 170 | Both | Right | 8/4/1968 | 21 | Long Beach,California | 1989 | 3 | 78 | PIT |
| - | Dave Bird | P | AA | 5-10 | 150 | Right | Left | 5/30/1968 | 22 | La Habra,California | 1989 | 10 | 260 | PIT |
| - | Mike Brewington | OF | A+ | 6-0 | 220 | Left | Left | 2/15/1967 | 23 | Fayetteville,North Carolina | 1989 | 30 | 780 | PIT |
| - | Joe Calder | 1B | A+ | 6-3 | 220 | Right | Right | 12/9/1972 | 17 | San German,Puerto Rico | 1990 | UDFA | | PIT |
| - | Timothy Curley | | A | | | | | | - | | 1989 | UDFA | | PIT |
| - | Alberto De Los Santos | OF | AAA | 5-11 | 160 | Right | Right | 12/16/1969 | 20 | Santo Domingo,Dominican Republic | 1988 | UDFA | | PIT |
| - | Marvin Dooley | P | A | | | Right | Right | | - | Wilmington,Delaware | 1987 | UDFA | | PIT |
| - | Hector Fajardo | P | MLB | 6-4 | 185 | Right | Right | 11/16/1970 | 19 | Sahuayo,Mexico | 1989 | UDFA | | PIT |
| - | Mark Futrell | P | A+ | 6-4 | 200 | Right | Right | 12/28/1969 | 20 | Miami,Florida | 1988 | 66 | 1415 | NYY |
| - | Tom Green | OF | AAA | 6-2 | 173 | Right | Right | 5/19/1968 | 22 | Lawrenceville,Georgia | 1990 | 30 | 780 | PIT |
| - | Willie Greene | 3B | MLB | 5-11 | 192 | Left | Right | 9/23/1971 | 18 | Milledgeville,Georgia | 1989 | 1 | 18 | PIT |
| - | Bill Holmes | 1B | A+ | | | | | | - | | 1989 | 26 | 676 | PIT |
| - | Brent Honeywell | P | A+ | 5-10 | 180 | Left | Left | 9/14/1965 | 24 | Jackson,Michigan | 1988 | UDFA | | PIT |
| - | Dave Howard | | A | | | | | | - | | | UDFA | | |
| - | Deron Johnson | 3B | A | 6-2 | 189 | Right | Right | 10/27/1966 | 23 | | 1986 | 29 | 714 | SEA |
| - | Mark Johnson | 1B | MLB | 6-4 | 230 | Left | Left | 10/17/1967 | 22 | Worcester,Massachusetts | 1990 | 20 | 520 | PIT |
| - | John Latham | P | A+ | | | | | | - | | 1987 | 30 | 761 | PIT |
| 46 | Austin Manahan | SS | AA | 6-1 | 185 | Both | Right | 4/12/1970 | 20 | Elizabeth,New Jersey | 1988 | 1 | 13 | PIT |
| - | Ramon Martinez | P | A | 6-2 | 192 | Right | Right | 11/18/1968 | 21 | | 1987 | UDFA | | PIT |
| - | Wayne Masters | | A | | | | | | - | | 1989 | UDFA | | PIT |
| - | Troy Mooney | P | A+ | 6-3 | 190 | Right | Right | 6/12/1968 | 22 | Westerville,Ohio | 1989 | 41 | 1066 | PIT |
| - | Jason Nixon | OF | A | 6-2 | 220 | Right | Right | 11/24/1981 | 8 | Chicago,Illinois | 2000 | UDFA | | CLE |
| - | Eric Parkinson | P | AA | 6-3 | 175 | Right | Right | 3/3/1969 | 21 | Adrian,Michigan | 1989 | 22 | 572 | PIT |
| - | Will Pennyfeather | CF-RF | MLB | 6-2 | 195 | Right | Right | 5/25/1968 | 22 | Perth Amboy,New Jersey | 1988 | UDFA | | PIT |
| - | Rob Peterson | C | A | 6-4 | 200 | Right | Right | 7/3/1968 | 21 | Mansfield,Ohio | 1989 | 32 | 832 | PIT |
| - | Darryl Ratliff | OF | AAA | 6-1 | 180 | Right | Right | 10/15/1969 | 20 | Santa Cruz,California | 1988 | 5 | 122 | PIT |
| - | Andre Redmond | OF | A | 6-1 | 200 | Right | Right | 8/5/1965 | 24 | Seattle,Washington | 1986 | 18 | 446 | PIT |
| - | Hector Rodriguez | 3B | A | 6-2 | 175 | Right | Right | 10/14/1969 | 20 | | 1989 | UDFA | | PIT |
| - | Roman Rodriguez | 3B | AA | 6-1 | 180 | Right | Right | 3/30/1969 | 21 | Maracay,Venezuela | 1988 | UDFA | | PIT |
| - | Kevin Rychel | P | AAA | 5-9 | 176 | Right | Right | 9/24/1971 | 18 | Midland,Texas | 1989 | 6 | 156 | PIT |
| - | Delvy Santiago | P | A+ | 6-3 | 193 | Right | Right | 1/2/1970 | 20 | Vega Alta,Puerto Rico | 1986 | UDFA | | PIT |
| - | Winston Seymour | 1B | A+ | 6-4 | 190 | Left | Left | 1/24/1966 | 24 | Nassau,Bahamas | 1987 | UDFA | | PIT |
| - | Joe Sondrini | 2B | AA | 6-1 | 180 | Right | Right | 3/28/1968 | 22 | Pittsfield,Massachusetts | 1990 | 39 | 1010 | PIT |
| - | Jessie Torres | C | AA | 5-10 | 180 | Right | Right | 4/19/1969 | 21 | Caldwell,Idaho | 1988 | 64 | 1405 | PIT |
| - | Ken Trusky | OF | A+ | 6-2 | 190 | Left | Right | 9/8/1986 | 3 | Swissvale,Pennsylvania | 1989 | 27 | 702 | PIT |
| - | Ricardo Ufret | SS | A | 6-1 | 170 | Both | Right | 1/11/1969 | 21 | | 1989 | 8 | 208 | PIT |
| - | Bobby Underwood | P | A+ | 6-1 | 180 | Left | Left | 8/10/1966 | 23 | Greenville,South Carolina | 1988 | 17 | 434 | PIT |
| - | Paul Wagner | P | MLB | 6-1 | 210 | Right | Right | 11/14/1967 | 22 | Milwaukee,Wisconsin | 1989 | 12 | 312 | PIT |
| - | Dave Watson | P | A+ | 6-1 | 180 | Left | Left | 5/13/1969 | 21 | Bagdad,Arizona | 1989 | 25 | 650 | PIT |
| - | Ronald Way | P | A+ | 6-0 | 190 | Left | Left | 3/18/1969 | 21 | Westland,Michigan | 1988 | 42 | 1080 | PIT |