The 1990 Connecticut State Treasurer election took place on November 6, 1990, to elect the Connecticut State Treasurer. Incumbent Democratic State Treasurer Francisco L. Borges won re-election to a second term, defeating Republican nominee Joan R. Kemler.
Kemler, who served as state treasurer for a year after being appointed by Governor William A. O'Neill in February 1986, switched parties from Democrat to Republican to run for state treasurer in 1990.
Democratic primary
Candidates
Nominee
- Francisco L. Borges, incumbent state treasurer (1987–1993)
Republican primary
Candidates
Nominee
- Joan R. Kemler, former Democratic state treasurer (1986–1987)
Third-party candidates and independent candidates
Concerned Citizens Party
Nominee
- William A. Iles
General election
Results
References




