John Augustus Bernard Koch (1845-1928) was a Melbourne (Victoria, Australia) architect who practiced between 1869 and 1913.
Koch was born in Hamburg in August 1845 and migrated to Australia with his family in 1855.
In 1871 he married Anna Puttmann at the German Lutheran Trinity Church at Eastern Hill (East Melbourne) where they were active members of the congregation.
In 1873 he was appointed as Architect to the City of Melbourne and designed a number of market buildings.
His best known buildings are the National Trust owned Labassa (originally called Ontario) (1889-1890) in Manor Grove, Caulfield North and the privately owned Friesia (1887) at 23 Isabella Grove, Hawthorn.