John Edward Belcher (20 February 1834 – 20 August 1915) was an Irish-born Canadian civil engineer and architect.
He is most known for his work in Peterborough, Ontario, where he designed many churches, residences and civic buildings which are now local landmarks.
He was educated at Queen's College Cork, and articled with his father, Samuel R. Belcher, who was also an architect.
In 1885, despite being an Anglican, Belcher was appointed diocesan architect by the newly formed Roman Catholic Diocese of Peterborough.
[4] In this role, he expanded and renovated the Cathedral of St. Peter-in-Chains and built parish churches in Peterborough, Cobourg and Douro.