The New South Wales Z15 class was a class of 4-4-0 steam locomotives operated by the New South Wales Government Railways of Australia.
In 1882/83, Beyer, Peacock & Company built six 4-4-0 locomotives to operate passenger services on the newly extended Main Southern line to Albury. All were fitted with Belpaire boilers in 1902/03. All were scrapped between 1929 and 1937.