The 9 by 5 Impression Exhibition was an art exhibition held in Melbourne, Victoria, Australia. It opened on 17 August 1889 at Buxton's Rooms on Swanston Street and featured 183 "impressions", the majority of which were painted by Charles Conder, Tom Roberts and Arthur Streeton, three leading members of the Heidelberg School art movement, also known as Australian impressionism. Two other members, Frederick McCubbin and Charles Douglas Richardson, made smaller contributions.

Swanston Street is a major thoroughfare in the Melbourne central business district, Victoria, Australia. It was laid out in 1837 as part of the original Hoddle Grid. The street vertically bisects Melbourne's city centre and is famous as the world's busiest tram corridor, for its heritage buildings and as a shopping strip.