2008 San Francisco 49ers season Signings Signings

| Pos_ | Player | Free_Agent_Type | _2007_Team | Contract |
|---|---|---|---|---|
| WR | Isaac Bruce | Released | St. Louis Rams | 2 years, $6 million |
| RB | DeShaun Foster | Released | Carolina Panthers | 2 years, $1.8 million |
| LB | Roderick Green | UFA | San Francisco 49ers | 1 year |
| QB | Shaun Hill | UFA | San Francisco 49ers | 3 years, $6 million |
| WR | Bryant Johnson | UFA | Arizona Cardinals | 1 year |
| QB | J. T. O`Sullivan | UFA | Detroit Lions | 1 year, $645,000 |
| CB | Allen Rossum | Released | Pittsburgh Steelers | 1 year, $870,000 |
| DE | Justin Smith | UFA | Cincinnati Bengals | 6 years, $45 million |
| DT | Isaac Sopoaga | UFA | San Francisco 49ers | 5 years, $20 million |