| 2003 Connecticut Sun season | |
|---|---|
| Coach | Mike Thibault |
| Arena | Mohegan Sun Arena |
| Attendance | 6,023 per game |
| Results | |
| Record | 18–16 (.529) |
| Place | 3rd (Eastern) |
| Playoff finish | Lost in Eastern Conference Finals |
| Team Leaders | |
| Points | Nykesha Sales (16.1) |
| Rebounds | Taj McW.-Franklin (6.7) |
| Assists | Shannon Johnson (5.8) |
The 2003 WNBA season was their fifth season and their first in Connecticut. The Sun made the playoffs for the first time since 2000. They would sweep the Charlotte Sting in the first round, only to get swept to the eventual champion Detroit Shock in the conference finals.