William Plumer Jr. was an American politician, attorney, and writer from New Hampshire. He was most notable for his service in the United States House of Representatives from 1819 to 1825.
- Occupation
- politician, lawyer
- Position held
- United States representative, member of the State Senate of New Hampshire, member of the New Hampshire House of Representatives
- Citizenship
- United States
- Born
- February 9, 1789
- Died
- September 18, 1854
