Portuguese legislative election, 2002 Opinion Polling 116 seats needed for a majority

| Date_Released | Polling_institute | Social_Democratic | Socialist | Green_Communist | People_s_Party | Left_Bloc | Lead_ |
|---|---|---|---|---|---|---|---|
| March 15, 2002 | Marktest | 44.0% | 35.0% | 8.0% | 6.0% | 4.0% | 9.0% |
| March 15, 2002 | Lusófona | 43.6% | 40.9% | 5.7% | 7.1% | 2.8% | 2.7% |
| March 15, 2002 | Eurosondagem | 41.4% | 39.3% | 6.9% | 5.6% | 3.5% | 2.1% |
| March 15, 2002 | Eurequipa | 44.7% | 33.9% | 7.1% | 9.1% | 3.2% | 10.8% |
| March 15, 2002 | Universidade Católica | 42.2% | 37.5% | 6.9% | 6.8% | 3.6% | 4.7% |
| March 14, 2002 | INTERCAMPUS | 41.0% | 39.0% | 8.0% | 5.0% | 3.0% | 2.0% |
| March 14, 2002 | Aximage | 44.0% | 40.0% | 7.0% | 6.0% | 2.0% | 4.0% |
| October 10, 1999 | 1999 election | 32.3% 81 seats | 44.1% 115 seats | 9.0% 17 seats | 8.3% 15 seats | 2.4% 2 seats | 11.9% |