Peter Jo Messitte (July 17, 1941 – January 11, 2025) was an American lawyer and jurist who served as a United States district judge of the United States District Court for the District of Maryland from October 1993 until his death in January 2025.

Peter Jo Messitte
Born 1941 in Washington, DC
Died 2025 in Chevy Chase, MD
FJC ID: 1629
- Gender
- Male
- Race
- White
Prior employment
- Maryland Circuit Court, Montgomery CountyAssociate judge · 1985–1993
- Private practice, Chevy Chase, Maryland1971–1985
- Private practice, Washington, D.C.1969–1971
- Peace Corps, Sao Paulo, BrazilVolunteer · 1966–1968
Appointments
1993–2025 · Appointed by William J. Clinton (Democratic)Term ended: Death
Education
J.D. · 1966- Amherst CollegeB.A. · 1963