|9th Mayor of Buffalo|
|Preceded by||Ebenezer Walden|
|Succeeded by||Sheldon Thompson|
|4th Mayor of Buffalo|
|Preceded by||Ebenezer Johnson|
|Succeeded by||Samuel Wilkeson|
|Born||June 28, 1800|
|Died||April 27, 1840 (aged 39)|
Utica, New York
Hiram Pratt (June 28, 1800 – April 27, 1840) was an American politician and mayor of Buffalo, New York, serving 1835–1836 and 1839–1840.
Pratt was born in Westminster, Vermont on June 28, 1800, and moved to Buffalo as a child with his family. He was a son of Captain Samuel Pratt, an early settler of Buffalo. He married Maria Fowler on December 10, 1825. They had three daughters.
With Orlando Allen, Pratt built a mercantile business, a warehouse and forwarding business, and was an agent for the Farmers Fire Insurance and Loan Company. A founder, cashier, and president of the first Bank of Buffalo, he was a leading Great Lakes shipbuilder; and a Trustee of the village of Buffalo.
On March 10, 1835, the Buffalo Common Council appointed Pratt as Mayor of the city. During his first term the city purchased land for the Elk Street Market. On March 5, 1839, he was elected for a second term. During this term six new school buildings were erected and competent teachers hired and a Recorder's Court was created. In January 1840, the New York State legislature passed a law requiring all mayors in New York to be elected directly by the people, making him the last mayor elected by the Common Council.
During the financial depression of 1836–1838, Pratt lost his entire estate largely to forged notes and the speculative projects undertaken by Benjamin Rathbun. He never fully recovered from the emotional strain.
Pratt died in Utica, New York on April 27, 1840, en route to Saratoga, New York for rest. His body was returned to Buffalo and he is interred at Forest Lawn Cemetery. Buffalo's Prospect Park stands on property once owned by Pratt.