Asa Fitch (November 10, 1765 – August 24, 1843) was a U.S. representative from New York from 1811 to 1813.
He studied medicine and became a physician practicing in Duanesburg and Salem, New York.
During the Revolutionary War he served as a sergeant in Captain Livingston's company.
He declined to be a candidate for renomination in 1812 and resumed the practice of medicine.
He died in Salem, New York, on August 24, 1843, and is interred in Evergreen Cemetery.