Ezra Churchill (May 18, 1806 – May 8, 1874) was a merchant, shipbuilder and a Canadian Senator for the province of Nova Scotia.
He was born in Yarmouth, Nova Scotia, the son of Ezra Churchill and Elizabeth Trefry. In 1824, he married Ann Davidson. Churchill married Rachel Burgess after the death of his first wife. Churchill was one of the largest shipbuilders in Nova Scotia, launching dozens of large sailing vessels from his yards at Hantsport, Nova Scotia including the barque Hamburg, the largest three masted sailing barque ever built in Canada. He represented Falmouth township in the provincial assembly from 1855 to 1859 and then represented the North division of Hants County from 1859 to 1867. Churchill was appointed February 3, 1871 to the Senate and represented the Liberal-Conservative Party.
He died in office in Ottawa in 1874.
His daughter Elizabeth married Douglas Benjamin Woodworth.
Churchill built a large Italianate mansion in Hantsport for his son John Wiley Churchill which was known as "The Cedars". The house is preserved today as the Churchill House museum and community centre.