John Mannion (American politician)

John Mannion
Official portrait, 2025
Member of the U.S. House of Representatives
from New York's 22nd district
Assumed office
January 3, 2025
Preceded byBrandon Williams
Member of the New York State Senate
from the 50th district
In office
December 16, 2020  December 31, 2024
Preceded byBob Antonacci
Succeeded byChris Ryan
Personal details
Born (1968-07-08) July 8, 1968
Syracuse, New York, U.S.
Political partyDemocratic
Spouse
Jennifer Brady
(m. 1997)
Children3
EducationBinghamton University (BS)
State University of New York at Oswego (MS)
WebsiteHouse website
Campaign website

John W. Mannion (born July 8, 1968) is an American educator and politician who has served as the U.S. representative from New York's 22nd congressional district since 2025. He previously served as a state senator from the 50th district between 2020 and 2024. Before entering politics, Mannion was a high school biology teacher.

Mannion was elected in 2020 to the New York State Senate, defeating Republican Angi Renna and became the first Democrat to hold the seat in more than 50 years. He then won the 2024 U.S. House election against incumbent Brandon Williams.