John Hayward (c. 1819 – March 13, 1885) was a lawyer, judge and politician in Newfoundland.
He studied law with George Henry Emerson and was called to the Newfoundland bar in 1841.
He served as chief clerk and registrar for the northern circuit court and as sub-collector of customs at Harbour Grace.
The results of the 1861 election in Harbour Grace were set aside due to violence at the polls; Hayward was re-elected in a by-election held later that year.
He retired from politics in August of that year and was named an assistant justice in the Supreme Court of Newfoundland.