The results of the 2004 Mayor of London elections were:
| Candidate | First Round Result | Second Round Result | Total Votes Counted |
| Ken Livingstone – Labour | 685,541 | 142,839 | 828,380 |
| Steve Norris – Conservative | 542,423 | 222,559 | 667,178 |
| Simon Hughes – LibDem | 284,645 | Eliminated | 284,645 |
| Frank Maloney – UKIP | 115,665 | Eliminated | 115,665 |
| Lindsey German – Respect | 61,731 | Eliminated | 61,731 |
| Julian Leppert – BNP | 58,405 | Eliminated | 58,405 |
| Darren Johnson – Green Party | 57,331 | Eliminated | 57,331 |
| Ram Gidoomal – Christian Peoples Alliance | 41,696 | Eliminated | 41,696 |
| Lorna Reid – Independent Working Class Association | 9,542 | Eliminated | 9,542 |
| Tammy Nagalingam | 6,692 | Eliminated | 6,692 |
