2006 Washington Nationals season Game log May

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| May 12 | @ Atlanta Braves | 2-6 | Ortiz (0-4) | 31818 | 12-24 |
| May 13 | @ Atlanta Braves | 5-8 | Cordero (1-1) | 37040 | 12-25 |
| May 14 | @ Atlanta Braves | 8-1 | Thomson (1-3) | 31062 | 13-25 |
| May 16 | @ Chicago Cubs | 0-4 | Hernández (1-5) | 39298 | 13-26 |
| May 17 | @ Chicago Cubs | 0-5 | Day (2-4) | 39757 | 13-27 |
| May 18 | @ Chicago Cubs | 5-3 | Wood (0-1) | 40517 | 14-27 |
| May 19 | Baltimore Orioles | 1-5 | O`Connor (2-2) | 30320 | 14-28 |
| May 20 | Baltimore Orioles | 8-3 | Lopez (1-7) | 32502 | 15-28 |
| May 21 | Baltimore Orioles | 3-1 | Chen (0-5) | 32152 | 16-28 |
| May 22 | Houston Astros | 3-10 | Day (2-5) | 18803 | 16-29 |
| May 23 | Houston Astros | 4-1 | Nieve (1-3) | 23189 | 17-29 |