| Election Name: | 2002 Missouri State Auditor election |
| Country: | Missouri |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1998 Missouri State Auditor election |
| Previous Year: | 1998 |
| Next Election: | 2006 Missouri State Auditor election |
| Next Year: | 2006 |
| Election Date: | 5 November 2002 |
| Nominee1: | Claire McCaskill |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 1,090,593 |
| Percentage1: | 59.95% |
| Nominee2: | Allen D. Hanson |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 664,982 |
| Percentage2: | 36.56% |
| State Auditor | |
| Before Election: | Claire McCaskill |
| Before Party: | Democratic Party (United States) |
| After Election: | Claire McCaskill |
| After Party: | Democratic Party (United States) |
The 2002 Missouri State Auditor election was held on 5 November 2002 in order to elect the state auditor of Missouri. Democratic nominee and incumbent state auditor Claire McCaskill defeated Republican nominee Allen D. Hanson, Libertarian nominee Arnold J. Trembley and Green nominee Fred Kennell.[1]
On election day, 5 November 2002, Democratic nominee Claire McCaskill won re-election by a margin of 425,611 votes against her foremost opponent Republican nominee Allen D. Hanson, thereby retaining Democratic control over the office of state auditor. McCaskill was sworn in for her second term on 3 January 2003.[2]