Phineas Cook Dummer was the sixth mayor of Jersey City in New Jersey. He succeeded Peter Bentley, Sr. A Whig politician, he served four one-year terms from April 1844 to April 20, 1848. He was succeeded by Henry C. Taylor.
- Occupation
- engineer, politician
- Position held
- Mayor of Jersey City, New Jersey
- Citizenship
- United States
- Born
- October 28, 1797
- Died
- September 14, 1875
