Dow Constantine
| Dow Constantine | |
|---|---|
| CEO of Sound Transit | |
| Assumed office April 1, 2025 | |
| Preceded by | Goran Sparrman (interim) | 
| 8th Executive of King County | |
| In office November 24, 2009 – March 31, 2025 | |
| Preceded by | Kurt Triplett (acting) | 
| Succeeded by | Shannon Braddock (interim) | 
| Chair of the King County Council | |
| In office January 12, 2009 – November 24, 2009 | |
| Preceded by | Julia Patterson | 
| Succeeded by | Bob Ferguson | 
| Member of the King County Council from the 8th district | |
| In office January 7, 2002 – November 24, 2009 | |
| Preceded by | Greg Nickels | 
| Succeeded by | Jan Drago | 
| Member of the Washington Senate from the 34th district | |
| In office November 26, 2000 – January 7, 2002 | |
| Preceded by | Michael J. Heavey | 
| Succeeded by | Erik Poulsen | 
| Member of the Washington House of Representatives from the 34th district | |
| In office January 13, 1997 – November 26, 2000 | |
| Preceded by | Georgette Valle | 
| Succeeded by | Joe McDermott | 
| Personal details | |
| Born | James Dow Constantine November 15, 1961 Seattle, Washington, U.S. | 
| Political party | Democratic | 
| Spouse | Shirley Carlson | 
| Children | 1 | 
| Education | University of Washington (BA, JD, MUP) | 
| Website | Campaign website | 
James Dow Constantine (born November 15, 1961) is an American lawyer, urban planner, and politician who is the chief executive officer of Sound Transit. He was appointed in 2025 after resigning as county executive of King County, Washington, a position he had held since 2009. A member of the Democratic Party, Constantine served on the King County Council from 2002 to 2009, and in the Washington State Legislature from 1997 to 2002.