| Theresa Ulmer | |
| State House4: | Arizona |
| District4: | 24th |
| Term Start4: | January 2007 |
| Term End4: | January 2009 |
| Predecessor4: | Amanda Aguirre Russell Jones |
| Successor4: | Russell Jones |
| Birth Date: | 26 February 1962[1] |
| Birth Place: | York, Nebraska |
| Nationality: | American |
| Party: | Democrat |
| Children: | Eli, Henley |
| Residence: | Yuma, AZ |
| Profession: | Politician |
Theresa Ulmer (born February 26, 1962) was a member of the Arizona House of Representatives for a single term. She represented the 24th District during the 48th Legislature, winning the November 2006 election.[2] She lost to Russell Jones during the general election during her unsuccessful re-election bid in 2008.[3]